AFAIU there are some people in LANL that have been for quite a while on some kind of holy crusade against Fortran. Their opinions AFAICS aren't really shared by

AFAIU there are some people in LANL that have been for quite a while on some kind of holy crusade against Fortran. Their opinions AFAICS aren't really shared by the computational science community at large, or the other US nuke labs for that matter. They regularly produce statements or reports like this one. As for the question in the title, yes Fortran will be around in 15 years. Perhaps the share of Fortran in new developments is shrinking, but more due to Python, Julia, MATLAB and such, and not C++.