Rockstar Games has filed a trademark for "Bully Bullworth Academy: Canis Canem Edit," a title originally released on the PS2 in 2006.
There has only been one game in the series (which is set in and around the fictional Bullworth Academy) to be released so far, although the Xbox 360 did get an updated version.
Rockstar registered the latest trademark with the EU trademark office on 20th November, although has yet to make any comment on whether it relates to a reboot or a digital re-release.
We'd love to see a new game in the series. But we'll have to wait and see what Rockstar comes up with.