Please see this thread. My request to the Fortran standard-bearers and the Community is the addition of just a handful of further features can make Fortran an extremely powerful language not only for the broader needs that have already arrived and are burgeoning in the scientific and technical computing domains but also it can enhance Fortran as a general-purpose programming language.
Indeed one can envision multiple benefits with bootstrapping compilers. The findings with fpm mentioned by @everythingfunctional are cool to read from the point-of-view of Fortran.
Now, it’s not that these few additional features as I suggest are an absolute must, but their inclusion in the language standard can make many aspects a lot more efficient and productive with Fortran and many a future application in scientific and technical computing space will also benefit as a result.