Mr. Ofdensen
Somehow I think they're in their element here. Everyone, it seems, has some form of power or another in this world. There are demons, gods and goddesses, mutants, wizards, Jedi and Dethklok. I believe that they'll be substantially strong as a force, but this world will be able to support them much better than one without the powers this one has. The downside to this is that they may not ever be nearly as popular or as mind-bogglingly powerful as a world force. The upside to this is that there won't be as many fan suicides or mass terrorism related to them. From what I know, though, they are all still extraordinarily rich even here, even now.
The kind of even keel is that there's still likely going to be just as much trouble. With all this power running around, you just have to expect some of those people to go mad with it. Take, for example, The Joker.
Yeah, that Joker.
He's here. As are the supers. And other bad guys and good guys. We'll need the defenses we had, but I believe the previous you has budgeted things where you're paying a fair price for your employees, while still staying in the black.