My uncle a few months ago had skin cancer on his nose so they had to the mohs surgery to keep digging til it was all clear..his doctor told him that after everything has healed they can take some skin from his leg and surgically implant it in the nose area to make it good as new..fortunately he only has a small piece of side of his nose removed its hardly noticeable but he was scared he would lose more..so yes, they can take some skin from Trump’s leg later on and implant it on his ear it will be good as new
No way is Trump going to have plastic surgery to restore his ear.
Heck, I would not be surprised if he commissions a drone with miniature stage lights to fly next to him with the stage lights shining on his ear.