Ruger is working on a shotgun. They were hiring for a shotgun product manager a while back.
Given the failure of the Red Label, I would imagine that they are going with a semiauto this time. I wouldn't think they'd develop a pump, but I wouldn't have thought they'd do a 1911 or a piston AR either.
I think I need a pistol caliber carbine. I'd love to buy a Ruger. A 9mm Ruger AR could be interesting.