In the AI age we'll probably see even more of a migration toward whatever frameworks have the most training data and are easiest for code-completion agents to work with. Putting much effort into alternative frameworks now seems like even more of a losing battle than previously.

In a way, that might be better though. If you need a framework that's optimized for lightning speed, then maybe you want to be hand-coding it anyway. Also, with fewer people using it, there's perhaps less chance of it becoming bloated over time. The framework no longer has to compete with React; it has its own reason for existence and can focus on the things that make it special, not the things that make it more like React.