Certainly wouldn't be surprising. Two of the top three women on SmackDown are chasing after the women's title on Raw, while two of the top women on Raw have appeared on SmackDown with their tag titles. The SmackDown women's champion has been left with nothing to do.
The Universal Champion appears on Raw once in a blue moon. "The McMahons" are running both shows instead of having separate GMs. PPVs are co-branded.
However, having said that...it was reported a while back that Fox has no interest in cross-promoting with an NBC show, and would therefore want the brand split to continue, which would also be unsurprising. I suspect they haven't come to a decision yet.
Mojo Rawley becomes the swerve on the Angle/Corbin Match. Pays off Corbin or is handed the match after Corbin is 'injured'. Mawls Kurt, more intensity than the "Intensity, Integrity, Intelligent" man Kurt Angle.
I'm just trying to think what could possibly be done with this mirror deal, it's hilariously stop/start and on deaths door.