If Sony and MS are planning to release them next year, they will most likely be revealed at E3....which only gives them a small window until the holiday season. Usually next gen consoles are teased the year before. But we haven't heard anything. With PS3 & 360 still selling well and Wii U not being drastically more powerful then what's already out; do you think we'll be waiting 2 more years to buy a PS4/Nextbox?
I kind of hope so. There's really no need for anymore new consoles right now.