I've considered that, but I've at time taken aggro (and died) from raid buffing right when the fight start on other bosses as gotw generates quite a bit of threat. Since new adds keep spawning on H Anub and I've my back to them, I feel that using glyphed gotw is risky for that fight. Even more so with our leader fast on the "50 DKP minus" for any screw up.

Not to mention that the GCD lost casting gotw is a lot more DPS lost than removing points from talents like IIS and putting them in mana regen talents. I rarely dot then single target DPS something. Little scarabs I don't dot as they die too fast, and when the boss is up I'm hurricaning the adds.

I think this was answered in the "Crit depression and combat table" thread in the main section of class mechanics. Apparently there is looking to be a 4.8% forced chance to hit instead of crit.

First one looks very strong. 20-30% uptime maybe, off the top of my head? Will look into it more.
Second one probably has to be reworked entirely. An Eclipse cooldown reduction (I think that means 6s) doesn't really interact well with the new cycle. At all.

The 4-piece doesn't make any sense at all unless it is a hint that Eclipse is going to get reworked again.

I think t8 will be best to drop. Chances are t10 will be itemised with a lot of crit and haste. Given that t8 leaves us crit capped under lunar I think dropping it is a good idea and either running 2p t9 & 2p t10 or 4p t10 (I'm assuming 4p bonus is a placeholder because it's utterly useless given you can chain eclipses already)

Given that you'd no longer be crit capped under lunar you'd get better item value from crit, which I think is a necessity given we're already haste capped post 400 leaving us few options in terms of full value itemisation.

As for [Merlin's Robe]. Don't see much point in crafting these, wear t9 chest/helm and t8 shoulders and legs with offset gloves IMO.

Lets assume that it does reduce the cooldown of eclipse by x seconds. We know that its not possible to proc eclipse while eclipse is already up, so if the cooldown was reduced by 5 seconds, we would need addons similar to Wise Eclipse to cancel solar eclipse when we are able to proc Lunar Eclipse. It would seem strange if Blizzard made a bonus that require you to click off a buff, or have an addon do it, so i think its highly unlikely that this will happen.

So the only way that a reduction in Eclipse's cooldown would benefit us, would be if it simply removes the cooldown - that means that once we have less than two seconds on eclipse, we would start spamming wrath, in order to get lunar eclipse up again. This seems odd aswell, because that means we would go back to spamming starfire 90% of the time - it goes against our recent eclipse "fix", and its mindnumbingly boring - i think Blizzard wants to avoid that.

I think Blizzard is probably just messing around, trying to see what works and what doesn't. I currently cant see a way an eclipse cooldown could work out to be a benefit, really, but more will come on that later, surely.

I think its reasonable to assume that the final tier bonus would be to something central to our damage and spec: Eclipse. What other buffs could we think of for eclipse that actually is a direct damage increase? (ei, make your own set bonus)

- 100% chance on wrath crit to proc lunar eclipse: Would be nice, but at ICC level, our crit is very high anyways - already we usually dont go that long before we get lunar up. A small increase, removal of RNG, and this would in fact just be a small increase in DPS. Might be too small, compared to what other classes are looking at, although we would benefit from this change about twice a minute, which IS on par with other 4p set bonuses.

You are forgetting a couple of things:

1) Our rotation is already mindnumbingly boring, pretty RNG (and with very little room for skill too ).
2) 100% chance on wrath crit to proc lunar would just push wrath-eclipses off the table again. Then we're back to haste-stacking and only using wraths to proc lunar.
3) To compete with the t8 bonus, why not just boost it? 4setbonus is now 5% more then the 2pc t8 is. Sure its not exiting or especially fun, nor does it change very much, but it could work.

I could see them reworking Eclipse just to make 4t10 attractive (and perhaps to make WiseEclipse less useful).
Imagine Eclipse cooldown increased to 40s, but the bonuses increased from 30% crit/dam to 35% crit/dam.

That would be roughly balanced (except it would push more 2t8 people over the crit cap), and would make 4t10 more attractive.

Another way to make 4t10 attractive would be to change it to 6s extra Eclipse duration. A cycle of 42s Eclipse + 5s non-eclipse is much nicer than 30s Eclipse + 5s non-eclipse.

The 2t10 is probably slightly weaker than 4t9 (25% uptime of 10% damage is a 2.5% bonus).

edit: answer solved

If we're suggesting bonuses to Eclipse, how about something involving DoT refreshment?

'Whilst under the effect of Eclipse, your Wrath and Starfire casts extend the duration of your Insect Swarm and Moonfire periodic damage effects respectively by 3 seconds."

Cap the extension at XX seconds just like the existing Starfire Glyph for a bit of balance if required.

This could potentially 'free up' the Starfire glyph slot for something else (Starfall, or perhaps even something new that may or may not come with 3.3)

OoC is 6% on cast (at least I think so; that's the number that's always been in WrathCalcs). Meaning it should proc around 2.5 times/min in a normal rotation. The buff is most likely multiplicative; spell school buffs (as opposed to single-spell buffs) usually are.