TexLive 2017 has been released at the beginning of the month and is now packaged in [testing]. No particular issue is expected when upgrading to this release.
Note that a few packages disappear in this release, following upstream changes in structure: * texlive-genericextra (merged in texlive-core) * texlive-htmlxml (merged in texlive-core and formatsextra) * texlive-plainextra (merged in texlive-core)
Pacman hooks for TeXLive, which were in texlive-bin, are now in texlive-core, which should fix bugs like FS50238, FS20423 and FS51918.
I expect to move them to [extra] early July.