1.) First of all screech's future should be mentioned in the series finale correctly as he transferred from Bayside High to a new low-difficult public high school, not Valley High, as a new principal.

2.) After the series finale ends, in that new low-difficult public high school, Screech befriends a new peaceful woman.

3.) After one year in that low-difficult public school as a principal, Screech and his new peaceful woman transferred to a new city, get married as Screech begins to work in a better job in a better company.

4.) Also at the same time, Belding gets turned down from the college dean for one year and then returns to Bayside High as a recurring principal.