Unfortunately I am the bearer of bad news today. It looks like the Combat Team will need some more time to finish your questions, so we will be posting these next week.
I say push 2.4! I'd rather have polished content then not. That will give them plenty of time to awnser the questions this week. This is also an indicator there will be no balances for merc/mando healers for the beginning of arena's.
Let me elaborate further, I would like to see the new gear released next week, give people that dont stack items due to PvE requirements a chance to catch up followed by the arena's themselves the week after, then when they are completely bug-free and non-exploitable release the new operations. This comes from a ranked PvP'er and a Nightmare Raider.