I literally have no idea who he can work. Taker/Cena was the spectacle, I don't think we get them in a "real" match in North America. Maybe at one of those events in Australia, Saudi Arabia, whatever.
I have no idea who Undertaker can work when I look at this unless they really want to give Drew a big rub and have him defeat Undertaker in about 10-12 minutes in similar fashion he did to Kurt Angle. Or if they want to do Strowman/Taker, or Wyatt/Taker. I have no clue where he fits in, partly because he sucks, but also because everything has moved on from Taker. No one is ever really built up for the Taker match at WM anymore like they used to be.