If TG2 is (With the finale commercial edition/s) going to find favor in the production community most notably in the motion picture industry then a port to Linux is really necessary, since many production companies Weta Digital, The Mill, Digital Domain, Dream Works Pictures and ILM to name a few all use Linux based systems.
If Planetside wishes to be a player in the production sector if that indeed is part of the business plan for the commercial exploitation of the TG2 product line then I cannot see how in the medium to long term how a Linux version (For Redhat at least since most of the high-end production software, noticibly Lightwave and Maya have support for Redhat and major production companies such as Weta Digital and ILM look for people with experience with it).
Regards to you.
Cyber-Angel