The Whyte fight is too dangerous for Deyonce cos he might actually lose and then the big AJ payday is off. When he loses to AJ, when not if, Deyonce will want to take some serious money back to the States cos he will be minus his belt.
Sulaiman might force the issue shortly cos he could name Whyte as Deyonce's mandatory so the only way he can swerve Whyte then is by a unification fight with AJ (as a unification can trump a mandatory.)