Elaine and Hebe could definitely have met somehow, then! Not sure if Thalia would interact much with current undergrads, but if I'm reading her history correctly and she went to NYU for undergrad, she could've maybe met Iris at some point back when she actually tried college?
I don't know if Hathor would keep up with all the Julliard happenings/shows or anything, but at the very least, Caer will probably bring it up when I put up her intro post? If that would...be a ping.
AND YES THEY ARE AMAZING and give me all your journals. ♥