For the one or two other people who care it looks like Davis-Panzer have some pretty lofty ideas for how to keep milking their cash cow:

Highlander: The Source, envisioned as the first of three new films in the popular supernatural franchise, will shoot in Lithuania starting in October, according to an announcement by Davis-Panzer Productions, Sequence Films and Grosvenor Park.
…
Davis-Panzer Productions is also preparing an anime Highlander feature film, in partnership with Imagi and Madhouse of Japan, as well as a video game, in conjunction with SCI Games Ltd. of London.

from SciFi.com

It will be interesting to see if Highlander 5 offers a fresh new take on the material or if it follows in the tradition of the last few movies and is a turd. At least the anime sounds like it could be cool if it were done well.