A new trademark has been filled by Take-Two for Bully covering "computer and video game programs and software". This follows the renewal of Agent's trademark last week.

As GameSpot notes, this is the fourth trademark for the game:

The first [trademark], originally filed two years ahead of Bully's release in 2006, covers "computer game programs and software." A second covers clothing, while the third covers printed material like books and magazines. - GameSpot

Rockstar Vancouver was the studio behind Bully, and as many will remember, they were commissioned to work on Max Payne 3. This meant a sequel to Bully was not possible for some time. This, and more, was discussed back in November of 2011 when Dan Houser chimed in on the future of Bully:

"So we knew that we didn't want to start doing the sequel instantly at that second with those guys -- even though [Bully] is a property that, like Max, we adore and might come back to in the future. There was just no impetus to do that then. [...] So we said, 'You can do Max, and then we will see what we can do with Bully.'" - Dan Houser, November 2011

The future of Bully is certainly promising, and we wouldn't be suprised if development isn't already underway. This trademark only adds to the integrity of the speculation, and certainly backs up the statements echoed by Dan Houser.

Only time will tell, but we'd put money on an official announcement for a sequel to Bully hitting within the next one-to-two years, depending on what follows the release of Grand Theft Auto V.