Agree on Frank. But he is strong as an or and took a bout of off Zain at WTT, only lost to JO 4-4 and was secs from a bronze last year. So I'm not counting him out.
I don't think you will see Pico wrestle again, at least not until 2020. Hard to imagine him at 65 if he does.
Green will stay at 70. By 2020, that may change we'll see.
If Stieber goes to 65, I would bet on him over Zain right now. Too much offense.
If JO is healthy and has had proper time to train, I take him over Zain right now. Agree 2 day format at 65 will be tough for him though. But remember he is undefeated against Zain, Frank, Kennedy and Stieber in Freestyle. As for getting to Zains legs, it be a little easier now that Zain doesn't use the hands to the face defense that cost him the match against JO.
Long way until April. Meanwhile, I stand by my OP, Zain blew the easiest path to a world medal he will ever have. He may (likely will) still win one, but path will be tougher for him.