On November 20th, WWE filed to trademark the term "ECW" with the USPTO (the United States Patent and Trademark Office) under the computer software and mobile applications category.

It's possible that ECW will somehow be utilized in some sort of video game or app in the future, thus justifying this filing.

You can read it below:

“G & S: Computer software, namely, software for the creation of mobile internet applications and client interfaces; Downloadable mobile applications for the streaming of audio and video content; downloadable ring tones, graphics and music via a global computer network and wireless devices; decorative refrigerator magnets; video and computer game tapes, video and computer game discs, video and computer game cassettes, video and computer game cartridges, video and computer game CD-roms, video output game machines for use with televisions; video and computer game software; cinematographic and television films, namely, motion picture films in the nature of sports entertainment; pre-recorded compact discs, pre-recorded video tapes, pre-recorded video cassette tapes, pre-recorded DVDS and pre-recorded audio cassettes, all featuring sports entertainment; interactive video game programs and computer game cartridges; mouse pads; disposable cameras; sunglasses; sunglass cases; prescription glasses; and optical cases, namely, cases for spectacles and sunglasses; cases for mobile phones; walkie talkies, protective helmets; sports helmets.”