What a terrible idea. The appeal of the original film was, first and foremost, its visual style. (Obviously the music too, but the visuals tie directly into that; it's kind of like a big string of music videos.) Remakes can be good when they interpret the story in a different way and/or a different medium, but here, the story is irrelevant. Plus, why do a motion capture movie about The Beatles if you are not going to motion capture The Beatles?
Abort. Abort. Please, someone, stop this from being made. I know the original will still exist, but the extorbitant amount of money spent on this waste of time could be put to much better use elsewhere. I mean, just skip it and go for the Broadway musical, which actually does make sense.