Nope, this addons for the X360 and PS3 are coming to late and won't be the main controllers, I look at them like the Eyetoy was, it's just an accessory with a hand full of games that support it, nothing more. It's too late for MS and Sony to win this console war, it simply won't happen.
Also I still don't know what is for you a hardcore game? Or a hardcore console? A hardcore gamer is someone who plays ANY game, no matter the system (Wii, PS3, X360, PC), if you're a hardcore gamer you should have all the gaming systems, to play all the exclusives, if you don't then your just a normal gamer. The concept of "Hardcore Console" or "Hardcore Game" was made up by some retarded people at Sony/Microsoft to keep people away from the Wii.