In Raven's vision, her, Eddie and Chelsea is all elderlies. They were at Bayside's 75th Reunion. They all hug at the end, showing that they are friends. But in the episode 6021 meets 4267, her vision is that her and Eddie are married. It's possible though, that shows that her visions aren't always accurate and even she can't always tell what the future holds. Especially when it's several years into the future.
Chelsea (to Eddie & Raven): This is so great! Now we can all be together in that stuffy overheated box of a room. It's gonna be so much fun!
Raven: Eddie, you may not know this, but you're the type of person that can hold a grudge for a really long time.
Eddie: No, I'm not and I'll never forget that you said that.
Raven: I have a million great ideas!
Eddie (sarcastically): Like the fan?
Raven: Okay, so I had a million great ones and one not-so-great one.
Raven: Hey, hey, hey!! It's DJ Rae on the miz-zike on K-U-D-A Kudaaa Radioooo!! Yeah! How was that, Chels?
Chelsea: Perfect, very professional! If only we were on the air.
Raven: What! Why weren't we on the air?
Chelsea: I don't really know how to turn on your miz-zike!
Chelsea (wwhen her hand stuck in the radio equipment): Rae, my hand is stuck.