I don't hope for the generation to be shorter, I can be ok with the actual hardware for many years.
Still I think this generation will likely be shorter than the previous one due to multiple factors:
-The market population is not gorwing while alternative products (tablet and PC) are becoming more competitive.
-All new consoles are relatively weak in terms of power, this mean they will become outdated in a shorter time.
-Neither Sony or Microsoft have sustained great losses to launch their products, this means there will be less incentives to extend this generation lifetime.
-Due to the lack of "indecision" between formats (PS vs XB), the systems (PS in particulary) are selling faster, this means market saturation will be reached more quickly.







