He caught a lot of TDs no doubt. Outside that he’s still an average blocker and imo not really a candidate for top 10 best tight end in the NFL. And that’s less a knock on him than indicative of the depth of talent at that position.
There’s a very good chance he could pass both an NFL physical examination and an mha screening. After that I see no reason why he wouldn’t immediately return to his former All Pro level production.
His career was shortened imo as much by the amount of damage he took in the pocket as he did running. I’ve never seen an NFL quarterback get fewer calls than Newton ever.