Sounds like Herbie's trying to do sort of a Quincy Jones thing and establish pop production cred. More power to him if that's where he finds the most interesting challenge at this point in his life.
Truthfully, I think that Herbie Hancock could make a helluva lot more interesting pop record than Quincy Jones, and that's with no undue disrespect towards Quincy. The guy's always been as much of a colorist as he has anything, and pop music of a certain bent has always been accomodating to colorists, to say nothing of the rich harmonic pallate that Herbie might bring to these songs. The results could be interesting, although not to people who don't have a place for quality ear candy.
Or he might just wuss out and make a drab slab of flab. Who knows? But I'm not dismissing this project out of hand. I came up surrounded by pop music, and pop music is not something I reflexively avoid on principle.
What I do worry about, though, is the lyrics. Herbie's pop work with lyrics in the past has been rather, uh....."dire". I sincerely hope he's working with a collaborator, and a good one.