If The Undertaker Retires at WrestleMania, should his Match be the Final Match?

The Undertaker has held a kind of a baton . A baton which he carried for so many generations . Until someone comes up to take the banner from him , he should not retire . If the Undertaker retires now then there will be a blank left in each Wrestlemania s as there would be no one to take his place and this will create a lack of interest in the up coming Wrestlemania s . Still now the name Undertaker attracts many people from over the world to Wrestlemania s