When Apple today released an updated iPad4 and an all-new iPad Mini, halfway into their normal release cycle for iPad, one has to wonder, what else do they have in store?
While this most likely was the last major announcement from Apple this year, at least regarding hardware products, it is not impossible that they would shift the release cycle for other products during the spring season.
This is of course pure speculation, but it would not be completely nuts to expect an iPhone6 with updated LTE chipset that support global frequencies in the 800Mhz and 2600Mhz band which are the most common frequency bands outside the US.
There has also been speculation about a smaller iPhone, basically since the original iPhone came out. Now with the larger iPhone5, they could re-use the old screen size or at least resolution with no extra work for developers.