The game dev industry could form a consortium to launch its own dedicated general purpose language built from scratch to compile very fast like V or Go, run predictability, be much safer, be more reusable, and be extremely productive with the lessons learned from C, C++, C#, and more.
Also, I think LLMs will be able to run against code bases to suggest mass codemods to clean things up rather than having humans make a zillion changes or refactoring fragile areas of tech debt. LLMs are already being applied to generate test cases.