I don't see any situation where Priest can even be relevant.
If Priest has Dragon Priest as their best deck with the new dragon cards and it's considered usable... all the tempo decks are going to out tempo it just like they have now.
If Barnes is good enough to make Nzoth Priest good... other classes will also use Nzoth decks and that will make Renolock return and bully Priest out again by winning the control match up.
And if Nzoth decks are good then that means Miracle Rogue comes back which craps on Priests.
Blizzard is banking on some jank Herald Voladjz Nzoth deck where you use a bunch of resurrects to return your deathrattle minions and always manage to have some board so that Herald hits something relevant most of the time. And then use silence on your Barnes/Voladj minion to get value/tempo in.
If Priest has Dragon Priest as their best deck with the new dragon cards and it's considered usable... all the tempo decks are going to out tempo it just like they have now.
If Barnes is good enough to make Nzoth Priest good... other classes will also use Nzoth decks and that will make Renolock return and bully Priest out again by winning the control match up.
And if Nzoth decks are good then that means Miracle Rogue comes back which craps on Priests.
Blizzard is banking on some jank Herald Voladjz Nzoth deck where you use a bunch of resurrects to return your deathrattle minions and always manage to have some board so that Herald hits something relevant most of the time. And then use silence on your Barnes/Voladj minion to get value/tempo in.