Personally cannot see Perez doing too much. Since it was announced that he would replace Hamilton he hasn't scored a single point.
As for Hamilton, think he will regret going to Mercedes and wont do as well as this year.
Red Bull were not as good as the last two years. They upped their game winning a number of races in a row which is where the title was won.
I believe the same will happen next season.
Any news on Qatar's bid to hold the pre season testing?