I already posted this on a diff forum so I'm just gonna copy & paste here my results of research.
Yeah I'm at a 90% of me say they won't be their and 10% of me say they will. It's only because I type in SuperBot PAX 2012 and Google acts like I'm talking gibberish. Even after searching SuperBot on the PAX site I still got nothing. Then I looked at the PAX 2012 schedule and CTRL+F these searches and got these results:
Super - Super Street Fighter 4 Tournaments
SuperBot - Nothing
Playstation - Nothing
Sony - Nothing
I even looked through the schedule thouroughly myself and didn't see anything.
So yeah unless I see something pop up in the next week or so they may not be at PAX.
Btw yes I know I do way too much searching but I only do this for games I care about so... yeah.