John Cena and The Undertaker are not advertised for WrestleMania. Perhaps WWE is experimenting. They may want to see how future WrestleManias will fare without John Cena or The Undertaker. From a marketing standpoint, does this show lack cache without those two legends? WWE will find out if Roman Reigns, Ronda Rousey, and Daniel Bryan are big enough names on the marquee to carry WrestleMania into the 2020s. Is this an experiment?