Villain is a reg, whom I have little history on and haven't seen him go out of line.

On that specific river, he is representing only AA** with the A of diamonds no long in his range in case he decided to raise with the TP+NFD.
It's very possible for him to have called with Aces pre-flop given how deep we are.
I don't really know what to think of his hand since most of his possible draws are blocked by the board or the Kd in my hand.

What do you guys think? Can I be hoping that he is getting out of line this deep?