Based on Aldriana thread on rogue forum (I steal him some questions, hope he don't mind), there are many things that need to be re-assessed.
Some question seems stupid in a WolK point of view, but we cannot be sure of anything without serious testing. All this testing could be handled by one person, but having all those data documented and shared in the same place will be useful for any current or future theorycrafter that will work on Death Knight class.

Every answers will have to be documented with screenshots and/or logs or will be ignored.

A/ General:
1. How much armor do bosses have?
2. Is Rune regeneration affected by Heroism/BloodLust?
3. How Blood Tap is working with the new rune system?
4. Can we consider that, with the new strike queuing system, we play like there was no latency at all?

B/ Strike:
1. Does a dodge/missed strike consume Rune or Runic Power?
2. Does the Off-Hand strike with ToT still cannot be dodge/missed?
3. What is the PPM of Killing Machine?
4. What is the PPM of Fallen Crusader and Cinderglacier?

C/ Disease:
1. Is the diseases crit chance based on spell or melee crit rating?
2. Is the diseases crit chance recalculated on every tick, on 1st apply or on every refresh?
3. Are the diseases percentage damage bonus (Cinderglacier, ToT...) recalculated on every tick, on 1st apply or on every refresh?
4. When overwriting disease, you don't delay the next tick?

D/ Spell:
1. Does a Death Coil spell consume Runic Power?
2. Does an missed Howling Blast or Icy Touch consume Rune?
3. Does a Rime'd Howling Blast give you Runic Power? If yes, does it depend of the number of targets?
4. How much runic power do we get from with a talented anti-magic shell per magical damage with 1 or 2 points?


E/ Ghoul & Gargoyle:
1. Does the Permanent Ghoul benefit from Presence bonus?
2. Does the Non-Permanent Ghoul benefit from Presence bonus?
3. Does the Gargoyle benefit from Presence Bonus?
4. Does the Gargoyle have an haste cap?
5. Is the Gargoyle Strike formula still 120 + AP x 0.333
6. Does the non-permanent pets stats are based on the player stat on the cast time or they evolve with the player?
7. Does the non-permanent benefits from Heroism/BloodLust?
8. What is the Strength to AP conversion for the ghoul?

If you want some questions regarding DK mechanism to be added, send me a PM, I will add then.
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Answers:
A.2: Yes, Heroism/Bloodlust speeds up the rate at which runes are returned.
As an added note, getting debuffed with things that slow your attack speed will also slow the rate that runes are returned.

A.3: Blood Tap is pretty much as it was in WotLK, but it doesn't generate 10 RP anymore. The duration is still 20 sec and it can be canceled via macro. It normally chooses the first rune from the left to the right to be activated.
If both blood runes were on cooldown and the first/activated one was the rune with the higher cooldown, the second rune will keep recharging like it did before. If the first/activated rune was the rune with the lower cooldown, the second rune will recharge from 10 (affected by haste). (Cayseth)

B.1: No. It only consume GCD

C.1a: It seems to be spell crit, though frost fever is never critting atm. I think they just copied the T9/4pc bonus and forgot to change it. (Cayseth)
C.1b: It's probably safe to say that Blood Plague is operating on the melee crit rate as the change between 29.6% and 26.9 is unlikely to be sampling error, but Frost Fever may be operating on the spell crit rate as its change is insignificant. It may actually explain why Frost Fever is currently only critting at 1.5x (NemoX)

C.3: Damage bonuses seem to be recalculated on every tick. Your disease will use the amount of AP you had at application of disease for the entire duration. (Sakuratei)
C.4: Disease ticks are not delayed by refreshing the disease. (Sakuratei)

D.1: Death Coil consumes RP, RP cost is not refunded if you miss. (kc102)
D.2: Missed HBs and ITs do not consume the rune.(kc102)
D.3: Rime HB generates 10 RP (2/2 CotG), does not change depending on the number of targets.(kc102)
D.4: One point into it provides RP Generation on par with current numbers.(kc102)

E.1: Ghouls benefit from the 15% haste of Unholy Presence and the 10% damage of Frost presence. (Consider's Unholy O.P)
E/6+7 Non-permanent pets are based on your stats when summoning them (that's why you pop cooldowns at that point). (dr_AllCOM3)

Change log
01-oct: AMS Question. D4
04-oct: Some questions answered.
07-oct: Some more questions answered.

A.3: Blood Tap is pretty much as it was in WotLK, but it doesn't generate 10 RP anymore. The duration is still 20 sec and it can be cancelled via macro.
It normally chooses the first rune from the left to the right to be activated.
If both blood runes were on cooldown and the first/activated one was the rune with the higher cooldown, the second rune will keep recharging like it did before.
If the first/activated rune was the rune with the lower cooldown, the second rune will recharge from 10 (affected by haste).

The only thing I've been wondering about is using it without Reaping/Blood of the North. With two blood runes ready using BS->BT it activates the second blood rune and not the one recharging. With Reaping/Blood of the North, it'll choose the one recharging and gives you two ready death runes.

C.1: It seeme to be spell crit, though frost fever is never critting atm. I think they just copied the T9/4pc bonus and forgot to change it.

C/ Diseases behave like DC.

E/4 No, but I think it doesn't benefit from haste anymore.
E/6+7 Non-permanent pets are based on your stats when summoning them (that's why you pop cooldowns at that point).

D4: One point into it provides RP Generation on par with current numbers.

This would make sense as FF is applied by a spell (IT or HB) and BP is applied by a melee strike (PS).

B/3: Preliminary testing indicates that it's still ~5 PPM. I'll run a longer test when I get home and post screenshots of the results, but it's definitely not any lower.

I presume that is for the full points spent in KM to get the 5ppm meaning the 3 points required to cap it, but I’m wondering how that is split between the points. PPM per 1 point spent etc. 3 does not go into 5 and unless each point increases the PPM by exactly 1.66666... then 1 of the points of KM increases the PPM more than another. Very few will take less than 3 points in KM, but for the basis of completeness if may be worth looking at?

C3/ Damage bonuses seem to be recalculated on every tick. While I was testing C4, I had my proc items unequipped and Frost Fever gained damage when an Unholy DK applied Epon Plague on the target dummy. AP values are not reconsidered for every tick, your disease will use the amount of AP you had at application of disease for the entire duration.

C4/ Disease ticks are not delayed by refreshing the disease. Using one IT and letting FF run it's duration resulted in 11 ticks, while using four IT's back to back resulted in 13 ticks.

A2 - Is Rune regeneration affected by Heroism/BloodLust?

Yes, Heroism/Bloodlust speeds up the rate at which runes are returned.
As an added note, getting debuffed with things that slow your attack speed(i.e. Malleable Goo) will also slow the rate that runes are returned.

This confirms that rune refreshing rate is tied to the Melee Attack Speed Modifier.

Then I'll add in that Sindragosa's Frost Breath reduces rune refresh times. As I got more stacks, my rune regeneration slowed down more and more.