GUYS WAIT.

Look at this picture of FNAF 1 Chica found in one of FNAF 2's cutscenes.

It's clearly very different from old Chica, specifically, it has a largely different beak.
The Chica in FNAF 1 is Chica 3.0!
EDIT: Oh, and here's a full picture of The Puppet.

"until next time"
That must mean that the website will be in this state "until next time", which could mean when the third game can be announced.
And I knew this was going to happen. Scott has become fairly successful because of FNAF, and it appears that he made FNAF 2, a highly detailed well designed game, very quickly with ease. If it's this easy for him to make a sequel to FNAF, and it brings that much emone in, then why would he not make another?