Thiem? No way.
Tsits has done some impressive stuff but he doesn't have Shapo's extreme-sports movement style.
Not coming over the ball with one hand.
I'm sorry, I don't know any of you guys IRL, but I feel 100% confident in saying that no, you cannot hit that shot. Not saying you can't occasionally make solid contact on an aerial one-hander (I have too) but it doesn't look like that, you're not getting that high, the ball isn't traveling that fast, and you aren't using it to hit a winner against one of the top 100 players in the world.
I didn't say next Fed. I said Maestro for a reason.
They both play the beautiful, attacking game. Tennis in the classic sense, updated for their times.
It was Laver, then Sampras, then Fed, it could be Shapo next. Obviously it won't be exactly like Fed, but it's good to know The Beautiful Game lives on.