I think the Non-elimination would have been pointless, unless it was meant for a blindside and then the person got wind of it and uses his Idol next.. otherwise it needs luck+careful planning for it to actually work.
I'm actually interested to see a Heroes VS Villians 2 but I hope they invite back more memorable contestants this time. Danielle, Courtney, Candice did nothing the first time round so we shouldn't see people like them coming back again.
I wanna see a Heroes VS Villians with 10 vs 10... then within the first episode, they mix them up into two tribes again to make things more interesting... like a Villian had to pick a hero, a hero had to pick a villian.. and they form 2 tribes with 5 Heroes and 5 Villians on each side.. then we'll see if the Heroes/Villians stick to themselves or do one person jump ship and cause backstabbing.. that can be good drama!!! Especially if there are IDOLS.. right on the first episode!