From the PlanetXbox360.com feature list:
"2010 looks to be the year of sequels. The industry loves them; this past year, the biggest selling titles were sequels – Halo 3: ODST, Modern Warfare 2, Assassin's Creed 2. Sequels sell well because, obviously, they are recognizable to consumers. And what consumer doesn't like to stay in their comfort zone? There's plenty to be said for innovative new properties; games like Brutal Legend and Dead Space come out of nowhere to massive success (and inevitably start franchises of their own). Indie games in particular tend to offer a non-mainstream experience that is often completely unique when compared to the tried-and-true formulas of franchises. Still, how about some love for the franchises? Some of the best games in recent memory are part of mega-franchises: GTA IV, Fallout 3 and Halo 3 spring to mind. Sequels are able to excel because a) they have huge amounts of money poured into them and b) they are built upon (mostly) very stable foundations. If a game is successful enough, then by definition it must have done something right. Sequels can build upon an original's successes and rectify any shortcomings making use of that most wonderful of things: hindsight. With all of this in mind, I will now list the top five video game sequels landing in 2010."