[Wynton]

Purely on an intuitive level, I'd just call that river.

I actually don't think he's got a higher flush. Because in that case, I believe he'd try a stopngo on the turn (i.e., just call the 3-bet and plan a c/r on the river). So that leaves the choices of a smaller flush or 2 pair or trips.

Put a gun to my head and I say he had trips on the turn.

But this is all based on hunches, not anything reliable like probabilities.