Sony fan here. If ten of the 15 exclusives are very good, I will buy a XBOXONE to play them. My PS3 stands right beside my 360, I believe we can all be happy together. However, I will NOT let my kinect 2 on and WILL COVER the cameras all the time, also, will NOT pay for xbox live and will NOT watch tv for achievements.

As a massive Sony fanboy, I have zero concern over the 15 XBO exclusives. As I see it, PS4 will be the same price, with an equal or better online service, launching at the same time, and with a 50% power advantage. The 80% of games that are multiplatform will run, look, and play better on PS4. The exclusive games for PS4 will show even a bigger gap than the multiplats. No matter what MS shows at E3, PS4 is going to sell just fine.

The only feeling I have about those exclusives is interest. What is MS going to bring to the table. Last gen I got a 360 for 3rd parties, GeoW, Halo, Alan Wake, and to replay Banjo-Kazooie. What kind of new eye catching IP's have they come up with, and will they be enough to sway me to a second console next gen?

So those aren't coming first year?

Also, source?

Devil May Cry 4 also got a petition like this. Only it didn't get that many signs.

You look at Microsoft and Sony's respective development studios and you pretty much find your answer whether Sony fans are worried or not.
Sony: Metascore
Naughty Dog: Uncharted(88, 96, 92)
Sony Santa Monica: God of War(92, 80)
Media Molecule: LittleBigPlanet (95, 91)
Guerilla Games: Killzone (91, 84)
SCE Japan(Project Siren): Siren(78)
SCE Japan(Team ICO): work-in-progress
SCE Japan: Gravity Rush(83)Tokyo Jungle(74)
Polyphony Digital: Gran Turismo(84)
SCE San Diego: MLB The Show( 90,91,90, 87, 87)
SCE Bend: Resistance Retribution(81) Uncharted Golden Abyss(80)
Sucker Punch: InFamous(85,82)
Sony Online Entertainment: DCUO(72) Planetside (81)
SCE London: Singstar(82) Wonderbook(72)
Guerilla Cambridge: LittleBigPlanet[PSP](87) Tv Superstars(56)
Evolution Studios: Motorstorm(84, 82, 77)

Microsoft:
343 Studios: Halo(87)
Turn 10: Forza(90, 92, 91)
Good Science Studio: Kinect Adventures!(61)
Kids and Lifestyle Entertainment: work-in-progress
Microsoft Studios LA: Work-In-Progress
Microsoft Studios Mobile: Work-in-progress
Platform Next Studios: Work-in-Progress
Playful Learning: Work-in-progress
Skybox Sports: Work-in-progress
Twisted Pixel Games: The Gunstringer(77)
Xbox Live Productions: South park Tower Defense:(72) South Park Tenormans revenge(52)
Lionhead:Fable Series:(89,80, 55, 61)
Lift London: Work-in-progress
Press Play: Work-in-progress
Rare: Banjo Kazooie(79,77) Viva Piñata(84, 82)
Soho Productions: Kinect Sesame Street Tv(76)
BigPark: Kinect Sports Season 2(66) Joyride Series(52,67)
Black Tusk Studio: Work-in-progress
Microsoft Studios Victoria: Work-in-progress
Microsoft Studos Osaka: Work-in-progress

Also the list was just to put things in a different prospective, each company has their own go to studio and each has it's mediocre studio.
Microsoft obviously has a ton of young Studio's which can bring some great games to the table... or do the opposite.

Well those 15 Kinect launch exclusives a few years back certainly turned a few heads.

Is this a FUSE thread now?

*CoughWONDERBOOKcough*

The new Killzone just looks to epic to let that one pass by. Haven't seen much of Microsoft though. I'll stick it with my PS3 and Xbox 360 and when next-gen releases I'll only get the PS4 at launch.