As we are using the open assets import library program to incorporate with the importer, this page explains what formats that could be available.
http://assimp.org/main_features_formats.html
Right now most of the work is being done for the FBX format.
Perhaps after that is fine tuned more, then other formats on the above list can be added. But I do not see this happening before the next update.
Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz, 2400 Mhz, 4 Core(s), 4 Logical Processor(s), 8gb RAM, Nvidia gtx660, Windows 7 Pro 64bit, Screen resolution 1680 x 1050.