New Champ? Could it be one of them!?

riot did a teaser for braum like this. i think a year and half before his release in a winter lulu splash there was a poro with a mustache

and

Considering that the Academy skins share the same theme with Professor Ryze it's probably him and "Teacher" Caitlyn (Tophat and Hair)

Looks like a bolder bald man, likely braum. And a women, maybe leo?

One looks like swain's bird is perched on their shoulder

The guy with the hammer might be Orlon, Poppy's inspiration?

Baker Pantheon and leona teaser?