It looks like AJ Lee, The Bella Twins, and Paige are not brand specific in WWE. Currently, Brie Bella and Paige are the WWE Women’s Tag Team Champions which gives them the fluidity to move between brands. But according to WWE.com’s roster page, all four women are now listed under Free Agent.
Brie and Paige, the reigning tag team champions, have been featured on SmackDown. However, the Judgment Day has extended an invitation for them to defend their titles on Raw. Before becoming free agents, both Brie and Nikki Bella were part of the Raw roster, while Paige was not assigned to any brand.
It was last reported that there is no creative direction for Lee at this time. She may be seen again by SummerSlam. Lee was on the Raw brand.
Other talents that are considered free agents include Danhausen, Oba Femi, and Omas.