If there's a project going on with A7 that has a publisher who wants the game to be capable of running on Linux and if they spend the money, Conitec will do a port.

Same goes for console adaptations - they said this multiple times.
No project to show off, no publisher willing to spend the money for development --> no development for a different platform.

Check out this thread as well:
http://www.coniserver.net/ubb7/ubbthreads.php?ubb=showflat&Number=46113&page=5