Apple's next iPhone won't be until late 2016, but should come with a new design.
Apple and Verizon in iPhone Negotiations for 2010?
This is just the latest in a series of reports that Apple may open the iPhone up to other U.S. carriers. AT&T has been said to be working on trying to extend their exclusivity into 2011. It's no wonder, since AT&T's most recent financial results showed that they had 1.6 million activations of the iPhone 3G in the 1st quarter of 2009 and 40% of those customers were new to AT&T. If Verizon were to also offer the iPhone, it would likely reduce the number of customers switching to AT&T.
USA Today speculates that even if Apple did open the iPhone up to Verizon, it would likely also remain available to AT&T customers.