I’ve never worked anywhere that would have done that. If you have a Sec analysis and it says you have vulnerabilities you harden and fix those vulns. You don’t just say “ok full rewrite in $HOT_LANGUAGE!” For one thing, you’ll have to retrain or replace your entire team, who may mostly be $OLD_LANGUAGE specialists. And either feature freeze, or carry on feature development thus needing a larger team, and making the spec a moving target for the porting team.

Now, do I think that it may be more likely in 2027 than it was in 2007 or 2017? Absolutely. Depends on how well-documented and specified your existing system is. A rust rewrite or whatever is highly possible now for many codebases, probably.