Oh dear. More style, less substance.
Having enjoyed hundreds of hours playing Gwent and having invested a lot of money in it, I am extremely disappointed with this rewrite.
A lot of this has already been said by others, but I wanted to post this just in case it may help CDPR in some way.
The thing that appealed to me about Gwent was its elegant simplicity that hid a depth of strategic potential. Like chess, the individual pieces and moves weren't that complicated, but the strategic complexity was there. Trying to anticipate your opponent's strategy and disrupt it, while trying to implement your own, was a large part of the appeal. Managing your resources and timing your passes was a key part of gaining the upper hand.
This new game has traded that elegant simplicity for "busy work". It seems to have lost a lot of its identity in the process.
I am not a fan of 2 rows, it removes one of the dimensions of unit placement from the game, along with all the mechanics that utilised it. Yes, 3 rows could have been made better use of, but the only merit I can see to losing a row was to see the card art better during the game. Unfortunately, CDPR seem to have decided that this is the way forward and there is no going back. I hope they can make it work.
I am not a fan of the new approach to leaders either, but can live with it.
Provisions has a lot of potential, but needs refinement.
Hand limit and new card draw seems bad. This can be fixed.
Current card abilities seem limited, uncoordinated and uninspiring and balance is off, but these can also be fixed. The excessive RNG could be toned down or removed too while they are at it (Gascon, I'm looking at you).
The 2 bronze limit is debatable. It could work if the individual bronzes can work better with each other and with given archetypes.
As others have said, it seems that this redesign has ended up being for the benefit of Thronebreaker more than anything. The visuals took priority and gameplay has been adversely affected as a result.
I think that CDPR just haven't given themselves enough time to completely rebuild the game. If they had gone for refinement or evolution from the current (or even pre-Midwinter) version of Gwent, then 6 months was feasible. A complete rewrite, while simultaneously adapting it all to Thronebreaker, looks like it was a bit too much.
To me, sadly, this is no longer Gwent. Will it be any good? It's too early to tell. Thronebreaker looks great, and I will enjoy playing that, but I think I will have to wait several months and many patches to see whether the new multiplayer card game based loosely on Gwent has any lasting appeal. I just hope that I haven't bought (and earned) myself an expensive collection of cards for a game that no longer exists.