I know absolutely nothing about this (not an expert in any of this), but this is a fun question, so here are some ideas I got.
topics: maybe some more awards for deep learning (Goodfellow?, DeepMind team for AlphaGo/Zero: Hassabis, David Silver, etc? If the current trend of transformers being hot continues, maybe some authors of "Attention is all you need"? Whoever makes the breakthrough that enables the singularity in the next decade?), a quantum computing cohort could win one year (Shor? Aaronson? idk anything about this field... Umesh Vazirani??).
edit: In an alternate universe where blockchain was used only for actually practical purposes instead of the current universe in which its invocation evokes images of cryptocurrency tiktokers, get rich quick schemers, and buzzword-spouters, in an alternate universe where the set of people interested in blockchain was very nearly the same set of people interested in, say, RSA encryption or zero-knowledge proofs, and if pseudonymous people could win (perhaps posthumously?? ok, this is a lot of conditionals...), satoshi would have to win one year, right? Maybe along with their precursors? Dunno if that usually happens with Turing awards.