It’s codenamed Project Golden Nekker and… that’s about all we know for know.
Possibly three (3) if you consider that man is the real monster.
Or four (4) if you hate libraries.

“We’re aiming to provide a captivating single-player for players who prefer it over competitive multiplayer Gwent.”
Who knows what’s up with that mysterious critter.
CD Projekt, I guess, but they’re not talking.

Then I forgot that CDPR also released a singleplayer RPG using Gwent for battles.
Oh, it’s70% off in the Steam sale right now, hmm!