WTF I'll give it a go
KRON x Tonon
Keenan x Buchecha (no gi)
Roger x Rodolfo
Rickson x Sperry (veteran match)
Marcelo x Rafael
Royce x Wallid (surprise match) :) 
GregBell - kron vs marceloNice
cyborg vs Barnett
jump in my time machine to see rickson vs Liborio ....you did say dream card.
Marcello v Rafa
Kron v Tonon II
Gui v Jeff Glover
Galvao v Maia
Keenan v BJ Penn
Bravo v Gracie 3
NoGi bear - Marcello v RafaI don't get the Kennan v Penn. Keenan is way too much for Penn.
Kron v Tonon II
Gui v Jeff Glover
Galvao v Maia
Keenan v BJ Penn
Bravo v Gracie 3
Ttt
Randy v Tito
Buchecha v Barnett
Toquinho v Dean Lister
Tanquinho Mendes v Rafa Mendes
Kron v Ben Hendo
Keenan v Sean Roberts
Bravo v Royce
Randy v Tito
Buchecha v Barnett
Toquinho v Dean Lister
Tanquinho Mendes v Rafa Mendes
Kron v Ben Hendo
Keenan v Sean Roberts
Bravo v Royce
Rafa vs Marcelo (No-Gi)
Ryron vs Laimon (No-Gi, no time limit)
Lister vs Palhares (No-Gi)
Roger vs Rodolfo (Gi)
Royler vs Eddie 3 (No-Gi)
Gabi vs Rousey (Gi)
Demente Abreu v Andre Galvao
Kron v Sergio Moraes
Rousey vs Michelle Nicolini
Tonon vs Keenan
Werdum vs Barnett
Bravo vs Nino Schembri
Royce vs. Wallid II (gi)
Renzo vs. Sakuraba (no-gi)
Rickson vs. Liborio (gi)
Roger vs. Rodolfo (gi)
Nick Diaz vs. Braulio Estima (no-gi)
Keenan Cornelius vs. Romulo Barral (gi)
I think I would fly anywhere on the planet to see these six matches.
Surprise match- joe rogan vs ed o'niel
Lucas leite vs Tonon!!! 
Travis Stevens vs. Sean Roberts
Josh Barnett vs. Rustam Chsiev
Imanari vs. Ryan Hall
Rickson v Fedor (gi or kurkta? whichever) IT would be a hilarious mess of a reaction from people no matter what happened
Roger Gracie v Buchecha- Gi
Kron v Marcelo-No gi
Galvao vs Keenan-No gi
Gokor Chivichyan vs Renzo Gracie- Really random...why not?
Gui Mendes vs Caio Terra- Gi
They should do a NorCal vs. SoCal circa 1999- 2000Whoever the top dogs were from that era should get out there ( if they still train) and do battle. What would the match ups look like?
Terrere vs Roger Gracie
Lister vs Paul Harris
Kron vs Keenan
Marcelo vs Rafa
Rodolfo vs John Jones
Tonon vs Malfacine
Is that too many matches?
Terere vs. Bill Cooper
Lucas Leite vs Claudio Calasans
Kron vs. Tonon
Rico Vieira vs. Robson Moura
Buchecha vs. Barnett
Rodolfo vs. Roger
Rodolfo vs Roger (Gi)
Lister vs Palhares
Ryron vs Marcelo (Gi)
Gui vs Caio (Gi)
Kron vs Keenan (saw above, I like that. Gi or nogi, great)
Aoki vs BJ (the mma fight didn't happen, the grappling match still could. Nogi)
You could also have Rafa instead of Gui. Still thinking of a cool match for Rafa other than Marcelo.
Lots of places Metamoris could go....but they'll probably have some lame celebrity match headline the next event instead.
Caio vs GUI Mendes
Ryan Hall vs Paulo Miyão
Vitor Olivieira vs Kron Gracie
Jeff Glover vs Bruno Frazatto
Roger vs Rodolpho
Barnett vs Cyborg