Faster changes than usual, and by "than usual" I mean not desperately slow as it normally comes.
In all honesty, I'll just log in and dust the nerfed cards - Then proceed to not play Hearthstone. The game's core design was already damaged to a point of no return, you can bet whatever you want that the metagame will just find its next big stale point within days of the nerfs. That combined with Blizzard's ineptitude in making changes to the game like tournament UI, better MMR, real ladder fixes (not this bandaid they did, that will need change later anyway) and all these other simple things that are obvious to every player in the entire world except for the people ahead of Hearthstone are the reason I have not touched Hearthstone for months and will continue not to.
I'll just continue to play MTG:Arena while I wait for Artifact.