That was a circus fight imo, it went 6 rounds because they wanted it to. I don't think anything can be taken from it about Joshua's ability, other than he's very risk-averse.
Hearn said Wilder next then Fury,I have to admit il be surprised if it is Wilder next but totally look forward to them fighting if it is indeed the case,the only bigger fight at this time is Fury v Joshua imo and that’s certainly not happening next .