I also agree. But I want to talk about the definition of "fan input". Because most things I write about (if not all) just put several aspects into words that I LOVED about the B-K/B-T games. Since it's a long time since they were developed, I don't see anything bad in it when Playtonic just looks at all these aspect-driven threads to "remember". They should totally do their own thing. Since they want to replicate the "old feeling", I consider it as some kind of aid to support their vision in every way.
To wrap things up: I would be fine with a new game which includes all aspects that made the Banjo games amazing. Any additional stuff & innovations (like expanded worlds) should come out of the mind of Playtonic Games. Because I want to have that "pure" game as well & they have no external limitations (like a publisher), they should please go NUTS with this game!