No. If he truly in his heart of hearts didn't want to fight Usyk he could have stayed retired after the Whyte fight or retired again after the Chisora fight. I know its fun to speculate if Furys going to fall off a camel or something but hes not going to be able to worm out of it at this point. Hes already living in Arabia. I think the eye injury is a "boy who cried wolf" situation where he was telling the truth but people didn't believe him because hes Tyson Fury.
I think the opposite is more likely where hes going to try to avoid AJ after the Usyk fights. Not that AJs better than Usyk but I think Fury would prefer fighting Usyk because of the size difference. Hence why hes expecting to win 1 of the Usyk fights.