Actually, i know all of that. I was just curious to know upon which information would someone states that PvP rebalance will only happen in a "long time in the future".
There will be minor features in meantime, but the PvP rebalance is the next big feature. Latest ETA put it on Q1 2018 (still a chance for the end of the year, but it's rather unlikely, i'm told), which by my book is not a "long time in the future". But i guess it's a matter of referential.

Also, yes, PvP and Battle mechanics rebuilding are supposed to be on the same one big update, unless they change their plans on the way.