What are the future PvP changes? Potential Spoilers

I hear people comment on 2.0 PvP changes. What are they? And how do peeps already know?
And some have said that steam files show which cards are upcoming. How do I see this?

We only know what we’ve been told from the devs about 2.0, they’ve directly said it’ll be a fairly large rework of PvP, everything else is speculation and guesses. We’re all hoping for the best in this case. (in before disappointment)

Steam files are directly downloaded on to your computer. By accessing the Gems of War Steam folder of your computer you can see text and image files revealing future troops and info.

it seems as of previously published threads that difficulty will be off for arena and pvp…