#4 WWE has more storytelling opportunities for WrestleMania
A two-night WrestleMania opens up a lot of possibilities storyline-wise for WWE to explore. The company could run effective angles across both nights, tying the event together. It did so last year and this year, albeit on a relatively small scale.
The 24/7 Championship changed hands on both nights of WrestleMania 36. Meanwhile, this year's show featured a two-night story arc for the WWE Women's Tag Team Championship. Natalya and Tamina won a Tag Team Turmoil Match on Saturday, before facing Nia Jax and Shayna Baszler for the titles on Sunday.
WWE also teased the use of the format to resolve the Universal Championship picture. Daniel Bryan suggested Edge and Roman Reigns face each other on Night One of WrestleMania, with the winner defending the title against him on Night Two. But it's safe to say the triple threat was a much better option.
A lot of fun stories can be told using the two-night format for WrestleMania at future editions. Some ideas include a midcard title match on Night Two for the winner of the Andre the Giant Battle Royal on Night One and a story-arc similar to Bret Hart's at WrestleMania 10, where he wrestled twice.