CHANGES TO CP AGAIN
BE CAREFUL THEY ARE CHANGING CP AGAIN THE HORROR!!!
https://pokemongolive.com/en/post/sinnoh-tease/
Answers
I don't think level cap is a priority. Agree, PvP has to be!
After all they announced it was coming at the end of the year and everyone is aware that the current battle system didn't meet the requirements for PvP. They stress "...narrow the gap between Pokémon with the highest defensive stats and other Pokémon". It makes sense to favor variability and a richer PvP meta (initially rich, then it will evolve to everybody uses the same, xD).
The gist of the post makes it sound like they are nerfing high Stamina a little, and buffing high Defense, while lowering the Defense of many pokemon (so maybe nerfing non-high defense pokemon). I expect that there should be very small to no shifts for most balanced pokemon.
On the other hand, FEAR SHUCKLE!!! BWAHAHA.
Seriously, this could be prepping for raising the level cap, and/or prepping for PvP. Both were promised before the end of the calendar year. We'll see.