Check all forked packages which are now have an older version in Funtoo than the ones in Gentoo with the help of: http://www.funtoo.org/Compare_Forked_Packages_To_Gentoo

Find out why they were forked, and whether that reason is still legit.

If not unfork. If yes, maybe do a version dump.

I will keep track of my work at https://github.com/jubalh/funtoo-overlay-clean-work repo.
There I will push my comments, as I think the they should be done: unforking or version bumping etc.