I've been thinking about the three Mania main events and what will happen. There are 3 very strong faces in Becky, Rollins and Kofi. It's been a long time since WWE had such significant face support for people in main events; probably not this much since WrestleMania 30 with Daniel Bryan. I think a lot of people are expecting all 3 to win but I believe only 1 will. Here are my predictions and a little bit of fantasy booking.
Ronda/Becky/Charlotte:
There will be some sort of scenario where all are locked in a submission (i.e. Ronda in the Figure Eight from Charlotte while holding Becky in an Armbar while Becky has one of Charlotte's bridged arms in a one-armed Disarm Her). It will look a bit weird but anatomically is possible, I think. Anyway, there's a race for who will make who tap. Charlotte passes out to the pain of Becky's Disarm Her. Becky is declared the winner but will then pass out herself to Ronda's Armbar. Mania ends with Becky groggily waking up and celebrating lying with a single arm raised in victory. This protects Ronda and she is kept away from Becky for a whole year til WrestleMania 36, aside from an inter-promotional Four Horsewoman of the WWE vs. Four Horsewoman of the UFC match at Survivor Series. A decision would also be announced on Raw the night after Mania that, due to Becky passing out shortly after Charlotte did, Rousey retains the Raw Women's Title and Becky wins the SmackDown equivalent.
Lesnar/Rollins:
Basically everyone wants Rollins to win but I can see WWE screwing with us by Lesnar retaining. The motivation will be to keep Lesnar around for at least another year and to use his status as Universal Champion to bait the likes of McGregor and Gronkowski to sign for WWE.
Bryan/Kingston:
It's being set up for the perfect good guy triumph, after overcoming such odds. However, there's been so much focus on Kofi actually getting a Mania title shot as opposed to him winning. He's achieved that. The actual winning the belt bit can come later. I've got a strange feeling John Cena will be finally turning heel in 2019. What does that have to do with this match? I can see Cena (no pun intended) being made guest referee. He'll 'accidentally' cost Kofi the win. He won't appear at all until the first SmackDown on Fox Network in October where he'll apologise to Kofi for the 'accident' at Mania. By this point, Lesnar and Bryan have swapped brands and Kofi won't have had revenge against Bryan or any further title shots. Anyway, Kofi will treat Cena with scepticism. For a few weeks, Cena will play nice. Bryan and Kofi will lead the Raw and SD teams at Survivor Series and the final 3 will be Bryan vs. Kofi and Cena. Cena then turns heel on Kofi and Bryan wins. In subsequent weeks, Cena will reveal that he helped Bryan at Mania/Survivor Series because 1) he wants to get back with Nicki Bella and she's Bryan's sister in law, 2) he's sick of consumerism and being marketed to the kids and 3) he thinks Kofi is a B Plus Player. This leads to a big feud between them which Kofi gets the better of. It builds up to a rematch between Bryan and Kofi at WrestleMania 36 where Kofi finally wins a top title.