You answered your own question. Without Black Arrow, the only way to proc LnL is with traps. PVP hunters shouldn't have many problems still; place a trap somewhere a melee needs to go (around the healer, etc) and it'll still trigger it. Still, it's a bit more of a fuss now.

So... maybe Blizzard won't notice that each point in Wild Hunt is worth 1000 DPS as BM >.>

Best spreadsheet numbers that I came up with were:
BM: 8420.88
MM: 6890.14
SV: 7372.72

Now this was just some quick stuff in almost exactly the same BiS gear set (expect AP gems/crusher for BM).
Only using 19 pet talent points I came up with 7394.43 with BM by leaving it at 1/2 Wild Hunt. Probably closer to what the devs were aiming to balance it at.

Did a pug naxx25 (only patchwerk) as BM...

Used a T-rex (exotic pet), with pet strength food, cookie-cutter talents to grab Wild Hunt and Shark attack. He has over 5k attack power raid buffed

Not sure I understand your point. With the 30s internal cooldown, 3-4 procs for a 3-4min fight sounds entirely reasonable since we just concluded that it should average 1 proc per minute?

If you're looking at number of procs in relation to number of serpent sting ticks over a fight, of course it won't be one proc per 10 ticks because of the cooldown. Having a 1-to-20 relation between number of LnL procs and number of serpent sting ticks (assuming 100% serpent uptime) is entirely expected since about half of them won't be able to proc LnL due to the cooldown. If the proc rate was 5% (still with 30s cooldown) you'd be more likely to average one proc per 90s instead. With 5% chance per tick and 30s cooldown, four procs in a 3min fight would be pretty rare, but I have several logs showing that.

It is of course an entirely different question how many procs per minute would be *interesting*. Considering you get two per minute with trapping, that seems reasonable to me, but we don't get that on live without trapdancing. Increasing either the proc rate or the BA uptime makes sense, but it would of course have to be balanced against other things. If they do bring in rolling immolation traps, we're in an entirely different situation, but from GC's post about BA, that doesn't sound too likely.

They haven't said anything about removing the LnL cooldown, but Sin86's testing suggested it's gone, and with BA linked to trap cooldowns, there's no real need for it either. That said, I'll stop talking about this until my character finishes copying (/sigh) so I can test stuff myself.

Quote from previous page from Ghostcrawler says that it will stack with AP buffs.

source here: World of Warcraft - English (NA) Forums -> Thunderstomp removed!!!

It's going in the tenacity as its own spell, which is awesome. You can have any tenecity pet tanking for you when grinding or leveling. So getting a crab, turtle or gorilla(for pvp spell lock now) will be best idea at lower lvls...

Except warriors running over your frost trap with spell reflect on. Oops, nothing happens. It was bad enough when that only worked on freezing traps...

I think it was a change Blizz made for PvE purposes without thinking about the PvP consequences.

http://talent.mmo-champion.com/?hunter=&version=9626

The above confirms (sorry if I missed this, but I think I'm up to date) that Immolation Trap will not be renewed by Explosive Shot.

Still waiting on my character copy, but from the current spreadsheet results, it looks like BM is back on top.

BM is on top theoretically, but I don't think it can stay on top. I suspect people may take issue to a damage breakdown like: 3k dps hunter, 4.5k dps pet. The ridiculous AP scaling from the new talent will probably be toned down.

Without that, I think Survival still wins, since I was spreadsheeting a value for it about 500 dps behind BM.

Keep in mind; they've made the only LnL proccing traps not work on bosses now, unless the boss has adds (Gluth, etc.). BA will be the only way to proc LnL now in many fights.