There will not be any major changes to the home console trio. The cost of entry is set so high that it doesn't make it a profitable business to enter anymore.
The only possibility of any other major electronic manufacturer to enter the home console market is if Sony licenses out the PS4 hardware like 3DO did back in the mid 90's.
Retailers would be very uncooperative to any newcomers because shelf space is already limited.
Publishers would be very uncooperative because development resources are already incredibly thin.
Gamers would be very uncooperative because it would dilute the market (market dilution is what caused the crash in 1983).
The rEVOLution is not being televised







