MEMBER'S CHOICE - An alternate universe where Pam and Roy had a wedding, Pam goes to art school in New York, Dwight owns a restaurant and Jim works for a job in advertising that he likes a lot more and gets a lot more money at.
Basically? Dunder Mifflin never exists. And everyone meets under different circumstances.

The characters are pretty much the same -- personality-wise -- they just have different roles and work different jobs.

Hmm....how to put this? At the end of Season 3, Jim asked Pam out on a date. I thought I might go out on a limb and fill in the blanks.... (SERIOUS FLUFF ALERT!)

You already have him, she told herself. He came back from New York because of you. There is nothing to prove tonight. She wished she could believe it.

"Why do you want this job?"

His mind is suddenly blank.

"Um..."

Beach Games aftermath, so spoilers for Beach Games, and speculation for the finale.  Jammy, obviously.

“Ladies and Gentlemen! Blacks and Whites!  Straights and Homosexuals!”  Michael makes sure to make eye contact with Stanley and Oscar during his last two exclamations.  “It gives me great pleasure to announce that this Friday will be our second annual Dunder Mifflin….Casino Night!”

 It’s simply instinctive; at the two words, Jim’s eyes slide automatically toward Pam, only to find hers had done the same, and as a result they’re staring at each other for the briefest of moments.

Alternate season three finale