Don't worry, mate, I'm pretty much on the same boat as you on that last statement.
However, keep in mind that just because Sneaky Spirits are Smash Run enemies, it doesn't 100% mean an RH character's gonna be there. By following that logic, we'd be wondering where our Pilotwings and Nintendogs reps are since they have a stage as well.
And if I were a Shulk fan, unless something good happens this month and I'm wrong (which is possible), I'd think twice before thinking he's in at this point because there's a chance he MIGHT be an AT as well.
This isn't to defend Isaac as the same statements can be said about him, of course.
A small part of me hopes we get a break, but not so much.