Compatibility with other object formats will be offered where possible, although it may be handled externally via plugins, developed by Planetside or 3rd parties. OBJ and LWO together cover a pretty wide part of the available object format standards in that most applications can load and save to one or the other or both. So as long as you have another 3D application - and you will generally need one to create and/or edit models anyway since TG2 will not be aimed at model editing - then you ought to be able to get objects into a format that TG2 can load.
- Oshyan