For my actual predictions rather than sheetz which will probably be blown up by Monday
Charlotte to SmackDown / Alexa Bliss to RAW - SD Women's division needs a heel and back to back losses to Naomi make her not it anymore. Plus it gives the WWE a chance to continue their Charlotte circle jerk by having her win the women's title and feud with her bestie/ social media wife Becky Lynch
Dean Ambrose to RAW / Kevin Owens to SmackDown to trade mid card belts and to give each of them a change of scenery and fresh feuds.
American Alpha to RAW / New Day to SmackDown - AA is floundering on SD and hopefully putting them with Angle would inject some life into them, same thing with New Day... a feud with the HoodSos would be ultra fukkery.
Seth Rollins to SmackDown/ Uncle Luke to RAW - John Cena is gone and while Shinsuke Nakamura is there, he needs time for the mainstream audience to get acclimated to him, Seth ain't got shyt going on, plus RAW already has Roman (and Dean Ambrose in my hypothetical trade). Luke is destined to be great, but he needs to get away from the Wyatt fukkery for good
Kalisto to RAW - He needs to be with the other crusierweights
Sami Zayn to SmackDown / Dolph Ziggler to RAW - neither of them are doing shyt. Plus the former been teasing going to SmackDown for the longest
If it were up to me, Randy Orton would be on the first flight to Monday Night Raw... unfortunately he's the WWE Champion.