I would imagine any team/class that sucks right now will not be by 8.1, so I wouldnt start a bunch of new teams based on current gameplay

Class Changes

  • Class development is an ongoing process. There will be ongoing tuning and balancing for the next few weeks to keep things sane, then focus will shift to making all specs viable at Battle for Azeroth endgame.
  • The team will also tune Azerite Powers to keep them competitive.
  • Larger changes will happen in Patch 8.1 and beyond.

https://www.mmo-champion.com/content/?page=4