User blog comment:Wariwariparty/Who's gonna fight Blackbeard?/@comment-78.134.14.18-20200508205934

Depends on how strong Shanks was when Blackbeard scarred him, personally I took that Shanks realizing that Teach was more dangerous than he pretended to be, but not that much powerful. As for now,  I personally think that he's the weakest of the current Emperors and Luffy could win in a one on one fight.

What I'd expect in the future is: Kaido isn't defeated in Onigashima but leaves to start his big war alongside Big Mom and her crew, leaving Orochi to the wolves, Luffy, his allies and the allied fleet will fight them in a huge climatic battle which eventually involves Blackbeard taking a shot at killing the two Emperors once they're out of energy and a final resolution (maybe near Laugh Tale) between Luffy's crew and Teach. Maybe he'll just meet Shanks to give him back the Strawhat.