I heard L!Alm again

A high possibility actually. Most people want an Alm alt and still haven’t got it yet. The last battle themes for the Tap battle were SoV related, but there, currently, is a GC based on Eliwood; Lyn and Hector.

Honestly, there's no telling.
I do think Alm is a tad more likely now as legendary hero, since Eliwood, Micaiah and Seliph are all likely for mystic instead.

Well, people believe the Legendary this time will be colorless so, while it'd be a missed opportunity, Alm might have a chance, albeit he won't be a Red bow. But its rocky, since new events and stuff MAY be hints, but sometimes they aren't entirely. We really can't tell who can be a Legendary at this point with all of the fast ones and broken patterns they've pulled on us as of late like L!Marth, L!Erikia, or to an extent L!Tiki and Hrid. It could be anyone at this point.
But id have to say it's either Alm or Micaiah if this new one truly is colorless.

Uh, they already stated that eir would be available again by the end of the year, meaning this banner, so thats the colorless. Im guessing they'll introduce one of the defensive mythics in the other colors.