I agree this is a huge change in the game, and it will most certainly shake things up a bit, if nothing else. It will change a lot of things for me, at least, as I kept all of my cards at gold level and now I have a good reason to level them up even more.

I'm just a bit sceptical about the points given out for wins/losses, as @jacekw said, it will end up in many ties in the leaderboard. But let's see for couple of seasons how things pan out, then we can make rational conclusions.

Anyways, very exciting times ahead!