A wrangle over his back-room staff is thought to have caused a delay after days of negotiations with A Amanda Staveley.
Howe’s move to Celtic in the summer collapsed after he tried to bring in technical director Richard Hughes with him to Parkhead.
Whether history is about to repeat itself remains to be seen but the current club backroom team has been focused on tonight’s clash at Brighton.
Graeme Jones was told to continue as an interim boss for the game at the Amex Stadium.
United saw former Arsenal boss Unai Emery turn down an offer during the week after Villarreal announced he was staying in La Liga.