#1 Make Rousey break character

Whether the WWE Universe likes it or not, it seems like the company is going to have Ronda Rousey's anger come to a boiling point and eventually have her break character before the biggest show of the year. The move will cement her as the de facto heel character, get social media buzzing and allow for Lynch to look like a hero depending on if they work her in.
If nothing else, its the big moment fans have been waiting for and somewhat fearing, but the attention a moment like this could grab is absolutely worth it. Think about it! Everyone knows that wrestling is scripted, but the moves are real. Beyond that, everyone knows that apart of what makes WWE so great is playing into the reality of it all.
With that being said, exposing the business to the masses might be the best way for WWE to not present WrestleMania 35 as a sport, but as entertainment. And yes one could argue that it is very athletic entertainment, but the main point is that Rousey breaking character is the best way to grab the media's attention and maybe gain new fans in the process.