Based on what happened in climbing, I expect to see the following:
- Recreational mathematicians will continue to do maths "by hand" for fun, but many will use AI as a training/learning aid.
- Amateur researchers will vary in how much AI they use; using less AI to prove a result will attract greater praise.
- Industrial mathematicians will mostly use AI as much as possible, because the important thing is getting the result.
- I do not know what will happen to professional pure mathematicians. Will they become influencers, living off sponsorships or prize money from Tartaglia-style competitions? Those working in "purer" (less AI) styles might attract more praise from within the community, but less sponsorship money (because the results they obtain are less flashy).