Not to mention the language landscape is almost static at the top. Nobody's gonna came and take Python, Java, C, C++, JS, out in the next 10-15 years...
Only a huge self-blunder, like the Perl 5 -> 6 transition, and only at much more volatile time (when paradigms change, e.g. when web dev changed from CGI, Perl 5 had already lost the web framework scene to PHP, Rails, Django and the like even before losing its main niche back then - admin work) can do any serious damage to a top language...
Anyway, let's check in 5 years...