I don't think there's any doubt that the deal to bring Pogba back to United is complete, and will be announced soon. Even his "cryptic" message from earlier..."we say it all by saying nothing at all", in my opinion, confirms it. The overwhelming majority of reporting, for a good few weeks now, has been that we're about to spend a record amount of money to bring him back to Old Trafford. If this was false, and/or if Pogba preferred to stay at Juventus or move to Real Madrid, it would be very easy for him (either directly or through his agent) to say so - an interview, press release or simple tweet would get the job done. Neither Pogba nor his agent have refuted the rumours in any meaningful way. They've essentially said nothing, thereby effectively confirming that the move is imminent. It will be wrapped up once the team returns to England.
The more interesting discussion, as some have pointed out, will be how to best deploy the player in order to continue his development and maximize his potential.
The price is obviously quite obscene, but the simple reality is that a player is worth what the market will bear. Once this deal is done, the healthiest thing to do will be to forget about the fee and embrace Pogba for the player his is, and can be. He's going to be a wonderful addition to the squad. He'll bring personality, speed, power, drive and creativity to the midfield in a manner which has been lacking for far too long.