Not trying to sound rude, but are you really addressing the "issue" of premades? I mean, come on. The whole notion that if you queue with friends, who are more often than not perform even worse that random puggies, - you are now considered "the unfair advantage abuser" and "the destroyer of soloQ players fun" - is the overblown BS and by implementing
any form of premadeQ you accept it.
All this just to please the crowd that just would not want to group up and somehow are entitled to have their "safe space" scenarios. What's next, have everyone have all the crafting professions on their main so they won't be bother to interact with others/AH? Or are you going to balance it 1v1 and implement duelQ with separate roles? Or forced solo RvR lakes?
I know you guys are doing your best for the game and my opinion wouldn't change much but can't you at least postpone these scens until the majority of truly dedicated players approach RR70+ with working T4, when the gear gap between fresh T4 lowbie and full blown gankbus-ish minmaxed prem would be devastating

(maybe said lowbie should be camp-farmed from time to time so he/she would either get inspired by the strong opposition or leave to play a different game)