Project now seems to live on github and has seen some releases.
commit 2d0d63d785f9694010cca9571608e10a04f2a389 (HEAD -> master, origin/master, origin/HEAD) Author: Alexis Ballier <aballier@gentoo.org> Date: Mon May 15 17:18:19 2017 +0200 dev-tex/latex-beamer: Bump to 3.41, switch to github and build & install properly documentation, bug #616912 looks legit, thx