23rd would be awesome, but I think if 23rd was the day, we'd probably have seen some advertisements about the airdate by now.
I would love TARAus to take the Thursday 7:30pm timeslot, personally. There's very little to watch on Thursdays, lol, and nothing good is on at that time.
But I do think that Wednesday would be the most likely timeslot.
There's reruns of things giving (I think) aside from Talent. The dramas on Thursday won't finish for a while. Once Upon A Time started today on Tuesday, and I think Tuesday is completely infeasible.
If they did Monday nights again like last season, they could potentially grab a LOT of viewers by airing it before/after Revenge.