Another "Marvel NOW!" teaser has arisen, this time featuring the return of the original Thor - now calling himself Odinson - being put at odds against the Miles Morales Spider-Man. This teaser (via IGN), like the others, is illustrated by Mike Deodato Jr., who coincidentally illustrated Odinson's fall from worthy-ness to be Thor in 2014's Original Sin - a mystery that has yet to be revealed.
This teaser breaks the mold of previous pieces which contrasted a household character against a more esoteric choice from Marvel's deep bench, but squarely comes down to the generational divide that Newsarama has theorized could be crux of "Marvel NOW!"
It's also important to note Odinson's revised features: a short, cropped haircut with some high-tech armor - perhaps compensating for his loss of power after being dethroned as Thor.
Look for more on "Marvel NOW!" as it develops on Newsarama.