No, it won't hit 90% until a month or so before the next launch.
Until then, it'll (roughly) be:
34% Android phone comparisons
28% Hypothetical hardware/ software for the next iPhone
17% Hypothetical naming possibilities for the next iPhone
9% Arguments about cell carriers, their policies, prices and throttling
5% Help needed with current iPhone
4% Discussions about current features/ software/ and how people use their iPhone
2% Conversations about older model iPhones
1% Completely random and off topic threads