what i would love is an engine that thinks more like a human. presumably since this uses stockfish annotated games, it basically ends up thinking like a computer. thinking like a human would be awesome for game reviews to walk through things to note in different positions (tuned to my elo).
Or a model whose performance is measured via its efficiency of learning--in other words, how many games does it need to play to learn to play at X level? The reason Magnus Carlsen is impressive is because he's reached his ability level in chess under enormous time and computation constraints, compared to a computer. His efficiency of learning is extraordinary compared to that of any chess engine.
Or even the opposite end of the spectrum - with extremely limited resources (memory/program size/computation time): https://rlc-chess.com/ - like demoscene programs. Capable 1kb chess programs exist!
when will people realize that most consumers don't care about the infrastructure of the product they're using. they don't care if it's on a single server, blockchain, yada yada. they really only care about the experience of using the product.