I wouldn't expect it but I wouldn't write it off either. Just based on the 4 tests I've taken from all 4 sections, I have at times been surprised by whats popped up as a sim. That said, we only have 4 sims in BEC, it is not likely, but not ruled out either. But really most of the sims I've seen have not been as hard as what we cover in the practice sims. I think the Becker chapter sims as well as their skills practice do a pretty good job of covering the broad potential topics.
I've only seen one on one certain exam that struck me out of left field it would be that deep on that specific topic. And between my confidence level on that sim and my actual score I will say i'm pretty sure it was one of the pre-test ones.
I don't think that revealed anything sensitive 🙂
And everyone facing your tests in the next few days, good luck! You may not assume so from my scores but I panicked and stressed (and got snippy with my friends) before each exam just as much as each of you. Review all you can and walk in with your A game. You'll all do great