According to Dave Meltzer on the latest Wrestling Observer Radio, every match related to the SmackDown roster for this year's WrestleMania has "changed or is in danger of changing." That includes the rumoured Universal Championship match between The Fiend and Roman Reigns (which may or may not now become Reigns vs. Goldberg in a "spear vs. spear" match).
John Cena vs. Elias has also been scrapped, so those claims from @WrestleVotes that Reigns vs. Goldberg and Cena vs. Wyatt is now the plan could soon prove to be correct.
It's also said that Naomi vs. Bayley for the SmackDown Women's Champion is no longer happening because WWE has instead decided to schedule that for Thursday's Super ShowDown PPV instead. There's speculation that Lacey Evans will challenge for the title at the Show of Shows, but that remains to be seen.
What are you guys hoping to see at WrestleMania?