I think it depends on what exactly you mean by "load VRML". You may either load just the objects from the file or you may also be interested in animations, events or whatever VRML allows. In the former case, you have to parse the VRML somehow, create the objects from it, load the textures and you are basically done (still a lot of work...). In the second case, you need to write somekind of VRML-layer on top of jPCT...which will be a lot more work IMHO.
However...is it possible: yes. Can jPCT do it "out of the box": no. Does jPCT includes everything that is needed to write such thing: yes.
Hope this helps.