I'm in the cosplay contest... are you saying that that will or won't interfere with the smash bros photo shoot? 
Yes.
It will or it won't interfere with your photoshoot.
I don't have the schedule yet but Cosplay has Control of the Main Events hall for the entire day. There is a pre meet and a dry run and a costume judging. If you have never experienced these let me explain what they entail.
At the pre-meet everyone shows up so that the cosplay manager can tell them to sit and wait while they talk to the stage manager. Then the cosplay manager will go through the forms everyone has and make sure that all the people in the skit have signed or been listed on the form. That's when you stay at the end of the line and frantically call your friend who's still in the hotel room so you can tell him to get down here with your form. After you hand your form in you stand there waiting for confirmation that everything is alright while the cosplay manager talks to the stage manager, a yojimbo, and a costume judge (not necesarily in that order) while staring at your form. After she asks you to explain your handwriting in a couple of spots she says that you're approved.
But you might want to hang around if you need to do a dry run.
That's when you make a few more phone calls and try and get everyone in the skit together. You try explaining that it's for a dry run. They complain because you said that you could hand the form in yourself and they're at a panel. Once everyone gets to the room you go over your skit and argue about the 4th yaoi joke's punchline. You sit in silence for awhile watching the stage hands run around flipping switches and the volunteers move chairs. Then you ask the cosplay manager when you can do your dry run but a stage hand stops you because she's started the costume judging. After the second Zelda costume is judged she tells you that the run throughs on the stage are done later because the tech people need the stage for doing lighting set up and you'll have to come back later in the day. She may tell you a time.
At this point there are two things that could happen. You could make your fellow cosplayers bitter by sticking around and maybe getting to parctice the skit on stage with your pre-recorded sound file and lighting so it actually syncs up on the third try, but missing about 1/5 of the con.
OR
You can leave and never see your fellow cosplayers until about five minutes before the cosplay contest begins. Half way through seating. and ten minutes AFTER the performers were supposed to be seated in the green room for the cosplay staff to do role call. Possibly getting disqualified for tardiness but not told that you're disqualified until right before you actually perform your skit.
Things might be different this year but the above statements are based on true Kumoricon Cosplay Contest Events.
Wait for the schedule.
