even if they could they would not change back to WWF, it is WWE now, its entertainment and thats how Vince feels about it judging by the fact that he hires soap opera writers instead of wrestling writers. it would also be more difficulty than it was worth to change the name back and people have to get used to the name change again trademarc changes logo changes legal name changes and all that stuff. dont expect to ever see WWF again, him getting the trademark was so that they could use the logo on videos and mention WWF without getting in trouble. blurring the logo on all those videos is difficult to do so i bet they would rather not have to do that on every single video considering the thousands of hours of video they have.