I find it implausible that the club has not concluded the review given that it was announced to us over three games ago and I am sure things had started already given the departure of two staff plus signing of Bailey which happened shortly after it.
If you look at, we can safely assume that Hughes and Mackay are not reviewing themselves. That leaves only a handful of people in the frame. Powell, Tawhai and Howell, perhaps Massara and Phil Jones also, the strength and conditioning guy Paul Watson, the two physiotherapists plus the back office staff. Then there are the players but obviously only about 5 players are out of contract so there is not much mileage there. So not many people to deal with really. This wouldn't take long.
I reckon Powell has been promised a new role in the set up, this will be something that sounds important maybe something like Sporting Director of Youth Development, keeping him on the payroll.
It wouldn't surprise me if the secretive nature of the people involved ensures that this bad news is hidden from supporters.
They are probably praying for a win and then will announce the news I think.