That would be awesome, though they would likely be the Sigma versions.
NG1+2 with edition select that contained everything would be pretty goddamn amazing though!!!
I liked Sigma 1 but Sigma 2 was really watered down. Well except for the coop Challenge mode that was really really cool.
So yeah totally, edition select would a god send. I would love this.
Edit: in regards to the OP, I'm watching the 4 videos right now, the stuff he does in the first video at around 50 minutes up to and including the boss is pretty mind boggling. I'd be shitting my pants the whole time worried about not getting hit. Fuck me, this guy is nuts. Right in the feels. This video brings me back and I'm sweating for him lol. And some of the moves he does, I didn't even know existed.
Also, he's really smart with the dismemberment for crowd control.