I have a theory on the FTL pics. Since Aurora and Philip are there, this may be where we find out how Mulan and Aurora got Philip’s soul back from the wraith. Now the three people missing from the pics are Rumple, Emma, and Henry. So if something happened to those three, the other characters may have to travel to the EF in order to travel to perhaps the netherworld in order to save them.
What if the FTL in the pics is the Netherworld? It would explain why things seem off, but similar eg Belle’s dress. Also Aurora and Philip could be acting as guides since they’ve been there before!