It was a normal day at Hexside, since you, Tizzy, and Luz finally convinced principal bump to let in Eddison. Who was against it due to the fact he was Eda's son....  You were all in the library reading as Tizzy was reading a book about spells. She stops for a minute and gasp in shock. "guys! there is a spell about going to the future! that sounds so cool...." Tizzy declares as Eddison looks up at her. "Then lets go..." soon as you know it Eddison whips out his staff and opens a portal to the future and kicks you all in. 

(basically you will find your older self and the next gen along with older crush.)

Or make up your own!