I'm not sure it will be today, but very soon. The midweek visit seems very strange. You don't take midweek visits to schools you aren't at least seriously considering.
What I don't know is his visit history. Has he visited everyone else on his list, and we were the last one for him to visit? If so, I wouldn't read much into his looming decision. Nothing more than reading over a menu and deciding what you want at the end. On the contrary, if we were not the last visit, and he was just blown away, then perhaps his decision is a sudden one. In which case, I like our chances.