These are the games of this generation that need a sequel but for whatever reason have been denied one to this point. These weren't failed attempts like Final Fantasy XIII but universally accepted good titles that needed a sequel more than the recently retired Guitar Hero franchise. They simply were titles that could have shined in the spotlight and benefited from a good sequel.
Mirrors Edge
Who had ever heard of parkour before this game? Mirrors Edge was the first person platformer gaming needed to show it was possible. The perfect run was always the focus in Mirrors Edge and there were multiple ways to do it. Faith's story could have been easily over where the game ended but a sequel could expand the world and balance the gun play into something cooler.
Shadow Complex
When we first saw E3 this game looked cool but also problematic. What gamers received was Super Metroid in the present day. The story which was a companion to the Orson Scott Card novel Empire left us hanging on that lake in 2009. Chair since this time hasn't released anything or hinted at the sequel we all thought would be inevitable. As good as Shadow Complex was there was plenty of places to improve on the game's greatness. Personally I look forward to the day I'm once again competing with my friends for making the enemy scream the most.
Castle Crashers
So far the Behemoth hasn't shown any signs of wanting to make sequels and instead looks ahead to their new projects. Castle Crashers unlike Alien Hominid is a game that has the most potential for a sequel. With the amount of new ways to add on to what was established in the original release of Castle Crashers the Behemoth can have another major hit with ease. The recently released Pink Knight DLC on PSN shows Behemoth still has a lot of ideas left and hopefully more hilarious levels on par with the forest animals scared shitless.
Banjo & Kazooie: Nuts N Bolts
I'd rather have a Banjo Threeie but Rare released a gem in 2008. Easily one of the prettiest Xbox 360 games on the system that even with an install makes your system work pretty hard. The gameplay focused around building vehicles to complete tasks in game, and it worked. What Nuts and Bolts needed was more levels to explore and in the cases of some levels more to do when not in a mission. Nuts and Bolts was a step away from being a masterpiece.
Blur
With Bizarre Creations gone I'll never see the sequel to Mario Kart with real cars. Blur had a great single player and great online play that has it still spinning in my drive today. Motor mash is a battle mode similar to many car destruction games like Twisted Metal or Vigilante 8. Always beautiful Blur delivered eye candy and constant fun and will always cry out for a sequel that will never come.
Honorable Mentions
Chromehounds
Heavy Rain
Lost Odyssey
Marble Blast Ultra
Warhawk
