Well that seems awfully smug. ESPECIALLY considering that when it comes to naming conventions or their own words then an "established pattern" has never existed for Apple.
The iBook was renamed Macbook
The iBook name now became for actual books
Release cycles are rarely (never?) consistent
Camera on and then off on Nano
Site updates/product releases tend to be Tuesdays but sometimes are on non-Tuesdays
Jobs opinion swaying on small screen video
Macbook being renamed Macbook Pro despite almost identical specs
We can go through the history of Apple and find dozens of times where Apple seems to be on one path and suddenly jumps to another and it's their right to do so. So to assume that anyone "knows" what Apple will do next is ridiculous. The next iPhone can be named based off a sequential release pattern or it can just as easily be renamed based off screen size variants. Nobody is an expert here.