The Lord has no need to disguise Himself.OT, but What do you make of the disciples on the road to Emmaus (Luke 24) who didn't recognize Jesus after the Resurrection?
As God He could have kept them from recognizing Him so that a lesson could be taught. The Bible states that he was average and not something special who stood out. It was also dark and they were wearing the shawls over their heads.
It really doesn’t matter. The Bible is clear that Jesus will not take on another form so that all can see “Him, whom they pierced”. He will not change His form because the holes in His hands, feet and side will always be there for us to see.