Guy already has half the TDs he had for his 2020 season and nearly half of what he had in 2021 (10.) I think he is finally coming into his own as an elite red zone threat being able to score on those short “goal to go” situations with much more regularity. With such a strong start, I think 20+ is not out of the question.
In their 3rd year together, Allen/Diggs are having near telepathic-level chemistry and it’s pretty much a given that he will own every Bills single season receiving record. Route running is Diggs best attribute and the last thing to fade w/ age so I can see him breaking most career records as well (if he remains a Bill.) When it’s all said & done, the Allen/Diggs duo will be mentioned along side Manning/Harrison, Kelly/Reed, Young/Rice, Losman/Evans (kidding)