No. At least not IMO. The ratings would have to be extremely low (like .4) and even then ABC didn’t pull American Crime with it’s .3/.4 because they needed to have *something* there. And ABC has fairly loyal to OUAT. They’ll let it play out. I wouldn’t say no to them reshuffling possibly, though it’ll be HARD to find a place with A.I. going to Sundays.
Not to mention, Fridays are a low priority night. Aside from Saturday, it’s the least viewed night of the entire week. I imagine ABC is fine with their lower rated genre shows like OUAT and AoS airing on Fridays no matter what, at least for this upcoming Season. They are more concerned about fixing the rest of the week, including OUAT’s former Sunday home. However, if there were to be some sort of consequence due to ratings being too low even for Fridays, ABC could technically cut the episode order down. I don’t think they would cut the episode order either, though, when one of the main reasons for the renewal was because of their deal with Netflix. Plus, I haven’t really heard of veteran shows having their episode order cut like that.