From the outside looking in, this all feels like too little too late. Big tech has decided on Rust for future infrastructure projects. C++ will get QoL improvements… one day and the committees seem unable to keep everyone happy or disappoint one stake holder. C++ will be around forever, but will it be primarily legacy?

Yes. Unfortunately the committee has completely abandoned safety at this point. Even memory/thread safety profiles have been indefinitely postponed. The latest ghost safety lifetimes thing is completely unimplementable

There literally isn't a plan or direction in place to add any way to compete with Rust in the safety space currently. They've got maybe until c++29 to standardise lifetimes, and then C++ will transition to a legacy language