Watchdogs,AC4 & Destiny have timed/exclusive content for the PS4 versions.
COD,Fifa & BF4 have timed/exclusive content for the XB1 versions.
GTAV had a exclusive PS3 bundle.
Diablo 3 commercial only mentions the PS3 version.
Madden commercials only mention the 360 version.
etc,etc,etc......
If 3rd parties cared about parity they would not have signed exclusive content and marketing deals.
The fact that people in this thread think games are gonna be purposely gimped is a joke.
OP should have put "Rumor" in the title.