Matches/Events you thought would never happen but did.
 

Yeah, kind of like the "matches that would never happen" but opposite.

Bischoff in WWE is probably the biggest one.

A lot of the stuff WWF did with ECW early on
A lot of the stuff WWF did with WCW early on
One Night Stand

Shawn Michaels return to the ring, in a lot of ways. It was talked about. I wanted it to happen. I guess there was an outside chance, but deep down I kinda knew he'd never be back. I was wrong and now he's still wrestling.
I had actually stopped watching wrestling during that time, and saw a commercial advertising him wrestling on an upcoming ppv and was like "holy shit, finally!"

I never even though of JBL being a WWE main eventer.

Definitely Eric Bischoff in WWE.

did not think cm punk would make it

hogan to tna

Rock VS. Hogan

First thing that came to my mind as well

Cena vs Shamus in a Tables match

David Flair winning the U.S. title in old WCW

The Rock vs. Hulk Hogan
The Rock vs. Ric Flair
Triple H vs. Shawn Michaels-due to not thinking Shawn would ever be back in a ring competing and to be honest putting on some of the better matches of his career many of them against the Game.
Hulk Hogan vs. Shawn Michaels
Goldberg vs. The Rock, Triple H, Brock Lesnar basically being in the WWE

Hulk Hogan's heel turn in WCW
Bret Hart to WCW
WCW being bought out by WWF
Bischoff to WWE
Jericho becoming the first Undisputed Champion
Jeff Hardy becoming a multi-time legit WWE/World Heavyweight Champion and a credible main eventer
The Rock v Hulk Hogan
Hogan, Hall, Nash reform the nWo in WWF/E
JBL as a main eventer and WWE Champion (especially for 10 month reign)

David Arquette winning the wcw title

Sheamus beating Cena in a tables match, come on.

Cena/Orton actually burying the RAW roster on the orders of HHH.

JR going to Smackdown.