I also have an idea, and I wonder if anyone is interested. I have a half-baked port of Arx Libertatis for AROS, and I recently started fixing the file loaders for big-endian systems. Since there have been no Odyssey updates since January, Arx Fatalis could fill the void
That would be good choise, it would offer something new to NG systems
How about my suggestion of eDuke? Point of eDuke is not a because of duke 3d, it is three additional games wich would came possible. NAM/Napalm, WWII GI and Redneck Rampage
NAM/Napalm and WWII GI, eDuke supports them directly.