I know it's the "wrong time of year" to suggest this. (Note: I honestly hate that, that we have relegated Marvel's Gothic monsters to "Halloween theme") but here's my suggestion.
I think we should have a playable Dracula. There's already two costumes in the comics for him. The classic Dracula and the armor costume with the pony tail.
Why Dracula? Well, think about this. All the other Marvel vampires (and there are a few) could be enhanced costumes for him. Michael Morbius, Baron Blood, Hannibal King, Lilith...
I know we have Blade but he's not a full vampire and his weapons and powers aren't suited for a full vampire character for them to be enhanced costumes for him. And Marvel has not made a playable of any of it's old school monsters except on Gazillion's Superhero Squad Online. I want Dracula.
We have Blade but we have no bosses specific to him and a playable Dracula could be fun. Why do the little kids on Superhero squad get him but not here?