I think regarding their names, it’ll be a bit of both FTL & SB until they managed to merge their old/FTL selves, with their SB selves. I mean they do have 28years of calling each other by different names & it makes sense- at least to begin with anyway- that they call most people /everyone by their SB names. After all many of them probably only know each other from being in SB since the curse was meant to take away everyone’s happy ever afters.
I hadn’t thought about the fact that some people would only know each other from SB, that is a good point.