I thought to send you a message about this, as you are an admin here. I've just read an article about cancelled DLC for PSASBR. I couldn't find anything about it on here, so I thought I'd tell someone so they could look it over.
All future DLC was cancelled because of poor sales for Issac and Zeus? That sucks. I thought this would be a good rival for Super Smash Bros. Don't get me wrong, I love SSB, but a rival for it would only benefit the fans.
This news is really old. Also contraty to what a lot of people and users here still believe Dart was not cancelled in that he was never actually implamented into the game, it was more concept art that they also turned into a test model, however he as a character was never fully intended to be included in the game. If you haven't seen anything for it here then look harder, because it was big news a while back.