I dont know whether that percentage is true or not but there is one thing I do know: there has been a lot of mergers recently. Activision Blizzard, EA and Bioware, the list can go on but I am lazy. Also Square-Enix(merged some time ago) has announced some time ago that they have a warchest for purchasing developers to expand in the west, Ubisoft announced something similar.
If you paid attention to E3 you would have noticed that pretty much every game that was shown was a sequel FFXIII, Gears of War 2, Fallout 3, Prince of Persia, Resident Evil 5 etc etc etc. You can also look at the most anticipated lists for the rest of the year and you will find a lot of sequels. Quoting Yahtzee here: "Back in NES days you could make a game about a chef riding cockroaches with a gun that shoots velocoraptors , now a game is considered innovative if the space marine protagonist has moustache. "
We are getting shorter games with little innovation even though our hardware is getting better due to a population of gamers addicted to HD. Personally I found the graphics of PS2 era to be good enough *cough* Shadow of the Collossus *cough* at this point developers should concentrate on making bigger, more immersive gaming worlds rather than shorter worlds that have amazing textures that i will ignore because i am concentrating on my dam crosshair.
Proud owner of the following gaming devices:
PC, XBox 360, Wii, PS2, DS, PS3







