Q-Tip dropped a truly dope album in the last year. Jay Z dropped a massive album. Both 39 years old.
Hip-Hop is what we make it, only now are true stars ageing enough for us to make the choice as whether or not they are relevant anymore. If LL, Rev Run, Dr Dre, Snoop etc all dropped music they'd really take time over it would no doubt be a hit, and they are all dudes in their late 30s and 40s. They are still relevant.