^^ Yes I´d say it does, but I think mainstream appeal is more of a marketing thing than a game thing. Some games just don´t appeal to a big crowd of people... until you tell them it does... but Halo has all the right ingredients: Great gameplay with lots of action, great graphics (don´t give me this HD bull again you look with your eyes not you calculator) it has an epic stroy (eventhough I hate that term, way overused) and best of all a great muliplayer and co-op to bring people together. Put this together with a mege marketing mashine and you get the hype and sales we are seeing ritght now. Many games have to potential for this but only few pull it off.
On topic: YES THERE WILL BE A PS4 !!! For this not to happen the PS3 would need to really screw up and thats just not going to happen, too many peoples jobs depend on it so they will do everything they can to make it a success, no it´s not going to pull a PS2 but that doesn´t mean it can´t make any money in the long run.
