Darn, with so many comic-related shows and plot lines to keep up with, I don't remember this - did that really happen? Is so, that would seem significant.
He did stand up in the first episode we saw him in before he was 'crippled' and in the subsequent flashback to the night the accelerator exploded. (he was popping a champagne bottle to celebrate).
CISCO doesn't have an evil bone in his body and will eventually become VIBE. They keep hinting at it even with his dialogue pertaining to 'energy' and 'power', etc.
CAITLIN is good...for now. She's absolutely going to become the villain known as "Killer Frost", or rather the 3rd incarnation of that character.
Some accident that hasn't happened yet is probably going to account for both of their transformations. Before that happens we'll have to see the introduction of Firestorm, which is getting even more confusing by the day....since they're incorporating at least 2 versions if not 3 versions of Firestorm into the upcoming character. Even her dialogue pertaining to her relationship stated they were 'like fire and ice'.
Caitlin will probably be 'evil' simply because she needs heat from other sources to survive.....and people are clearly one of those sources....but she can use Firestorm's heat to abate her hunger for energy. It's going to be one of those vampire that doesn't really want to hurt folks but has to eat things.
I will have to go back to the DVR and check - but I seem to remember a very short scene where he stood in front of them after getting out of the wheelchair. I HAVE been wrong before........
Ditto at least once anyway