Likely we'll have less 'os-level' pwns, but to be fair these aren't really the most exploited class of vulnerabilities today anyway. I'm just as effective doing a sql injection and stealing your client's PII if you have or don't have your bluetooth stack written in a lang that prevents some memory corruption exploits from being feasible, and that's the actual goal of most attacks.
You're going to get owned in future by people obtaining creds to important stuff (say, aws creds) and by crappy userspace applications, we can hope that OS security continues to improve but even if it does get bulletproof the story is far from over while our apps are all piles of garbage.
Of course proper escaping/parameterization can be enforced in a good quality library as well. So hopefully we will see SQL injections in the future as well if these safer libraries become the default.
You're going to get owned in future by people obtaining creds to important stuff (say, aws creds) and by crappy userspace applications, we can hope that OS security continues to improve but even if it does get bulletproof the story is far from over while our apps are all piles of garbage.
At least, that's what I recon'