Haven't things already diverged pretty far from what was established in the lead up to STO? I'm not 100% up to date on either one, but that is the impression I've gotten from previous conversations here.
Actually they were divergent from the start. While STO's "Path to 2409" did crib a few ideas and characters from the novels, it also ignored/contradicted most of the events of the DS9 Relaunch, the Titan
novels to that point, and Articles of the Federation
. There was never a point at which Pocket and STO had compatible continuities, nor was there ever intended to be.