Hey, I don't know if this has been posted yet or not, but here is a link that show the odds of Nebraska making the tournament that is updated every hour. It is pretty interesting.
https://bvankat.github.io/nebrasketball/
These recruiting guys talk to people close to the situation and are pretty accurate. As for why he would not put it on Twitter, he like lots of recruits like to keep people guessing to make their announcement more exciting.
Yes, if he loves his visit Saturday it is possible. ASU is ahead right now though, so we have to wow him to get him.
P.S. you should have just put this in his thread.