I've always heard people use Eclipse in reference to the Blake x Sun ship and Iceberg for Weiss x Neptune, though I guess it really doesn't matter either way... since they're both terrible ships. I'll take Blake x Glynda over Blake x Sun...
Well, anyway, that ending to Volume 3 was definitely a good one for Bumblebee shippers... kind of, I guess. It at least made it somewhat more canon. I couldn't really see it happening before that whole arm cutting off thing, but it seems more probable now. White Rose still seems kind of iffy though to me... I mean, it's certainly cute and I freaking love it since it's opposites attract and everything, but I don't recall much evidence of it in the show itself (that "Don't touch me" scene was a pretty good one though). On a somewhat related note, I initially hated Arkos since, well, I generally dislike het ships... but, I don't know, all the stuff that happened in Vol 3 with the tragedy and Pyrrha's inevitable death made me like it quite a bit. One of the few het ships I came to like... and then poor Pyrrha bit the dust. Renora's another het ship I like (I blame Boop), and I'm sure they won't kill off Ren, at the very least, so... even if none of my other favored ships become canon, at least I can probably count on this one.