#7 R-Truth (c) vs. Andrade vs. Rey Mysterio vs. Samoa Joe vs. Mustafa Ali vs. Jeff Hardy vs. Kofi Kingston (Ladder Match for United States Championship)
Ladder Matches were a trend for the past few years in WrestleMania cards. Originally these matches used to involve Money in the Banks contracts, but now it involves title matches. The Intercontinental Championship was often defended in these matches.
Last year no ladder match took place on the WrestleMania card, but a year before at WrestleMania 33, the Raw Tag Team Championship was defended in a Ladder Match involving four teams. Before this, at WrestleMania 32 and 31, the Intercontinental Championship was contested in a Ladder Match between 7 superstars.
This year the United States Championship should be defended in a Ladder Match. Currently R-Truth is the champion, and he has only defended his title once since winning it. He could defend this title directly at WrestleMania against Andrade, Rey Mysterio, Samoa Joe, Mustafa Ali, Jeff Hardy and Kofi Kingston.
Andrade and Mysterio were feuding with each other before Royal Rumble 2019 but they have not been on television lately, so WWE will likely put them in this match. As for Joe, Ali, Hardy and Kingston, they will also be added to this match since they aren't expected to face WWE Champion Daniel Bryan at the Show of Shows.