There are a bunch of geeks who have been making their own Ages using open source software (and they're surprisingly good-looking) and they are talking about using open source game engines and such. It's too soon for them to do anything concrete, but the option is being discussed.

This (http://www.uruobsession.com/forum/index.php?s=89b166fd75ea6490b902bf42fdf1f209&act=ST&f=111&t=32735&st=0&#entry554568) (hopefully--I just copied it by hand from the other screen) is the thread.