It would be cool if they did a run of B&O P7 Pacifics and at least offered the option of any of the 20 Presidents. I don't know if all of them would get enough orders, but it would be cool to have the option. If they really wanted to swing for the fences, they could also offer the streamlined versions.
I'm an NYC guy, but I'd open up my wallet for a President Grant and one of the streamlined versions (any road #)