Thought we need a new thread to discuss these guys :P
They seem interesting now:
1. No GCD invoked
2. You need a target to summon
3. They don't have a targeting circle anymore (think Mirror Images summoning YEY!)
4. They have 3 charges with 20sec recharge each (total still 1min)
5. They cast instant roots to any and all targets you have threat with once summoned
6. Do NOT scale with any eclipse. Scale with Intel (don't know if they scale with pure mastery buffs) procs and NG
7. Hit about 9.5/6k and crit about 19k with Wrath (ilvl 505)
8. /w NG 9 casts (despawn before 10th flies), w/o NG 6 casts (despawn on 7th cast) 20.65% haste
9. Haste scaling is not dynamic but Intellect seems dynamic from my small samples, although there is some delay (slower for gain of procs, faster when they drop)
Edit: 10. They don't have a pet bar any more. Will attack the target you had when they were summoned until they register your new target from your attacks.
Posts your thoughts here since we seem to have hijacked both the T15 BiS as well as the Resto treants threads :P