Um, in 2009 the iPhone 3GS was the same as the 3G, the iPod touch 3G was the same as the 2G, there was no iPad, no new MBA also, etc. Cycles.
And it's funny that you phrase it in that way, because this is truly the 1st year without Steve Jobs alive (he was alive for the best part of 2011) and yet, we'll see all-new designs for a lot of products, including the iPad, iPhone, MacBook Pro, probably an Apple TV set etc.
Amazing how people are still not convinced that the most valuable tech company in the world doesn't act randomly. That the most important stuff is decided in the rush of the moment and not years ahead of time. That the company actually has values, a culture deeply ingrained into its DNA, and for the foreseeable future, it will act precisely has it have been doing in the last decade.