P.S.: I'm asking here hoping taniadelrio will see it. If she doesn't, I'll go to her journal and ask her there.
P.P.S: If you're interested, Valerie uses her original last name Smith in Archie & Friends #96 (it was Brown in the movie). Melody's last name isn't mentioned, but it was originally Jones, and Valentine in the movie. I hope they go with Melody Valentine -- I love that name!