On UCN Leoffler said that they had similar issued on multiple occasions with Wlad when he held the IBF belt. And that they always worked things out just fine. If they put in the proper requests and work with Derevyas team, they can easily avoid being stripped. Dervya could easily get a career high payday as a step aside fee and then maybe even get a slot on the GGG-Alvarez II PPV.
Hmm, if they promise Derevyanchenko good fights somehow or opportunities like that in addition to the step-aside money, this actually might work.
It has happened plenty of times. With so many belts on the line, unified champions have to work with the ABCs and other fighters. A recent example would be Elderei Alvarez; he fought on two Stevenson's undercards. Viktor Postol took a step aside fee and fought on a Danny Garcia card. Altho in his case it was a stay busy fight.