Not unless they're pushed by something, Since they have no friction, Literally a string of hair is enough to make them roll all the way throughout the omniverse. But, Given no energy (Including physical energy) exists outside of the unis, That ain't gonna happen.
So yeah, The universes can't collide with each other.
Even a Big Rip, Big Freeze of a Big Crunch doesn't even flinch 'em.