Apple shares have been sliding for months now, losing hundreds of billions of dollars of market cap for the Cupertino-based iPhone giant. Talk of a 'revival' (not my words) is now happening, with Morgan Stanley analyst, Katy Huberty, during an interview with CNBC on Monday that Apple's shares are quickly approaching the bottom, and will rebound later in the year with the launch of the iPhone 5S.

Firstly, I thought we were to expect two iPhone's this year - the iPhone 5S and iPhone 6 - so this is why I slapped a 'RumorTT' stamp on this news. Huberty recently met with Apple CFO Peter Oppenheimer, with Huberty saying: "Apple will surprise this year" with "a killer feature that drives consumers increasingly to the platform" that will debut on the iPhone 5S. I thought users constantly flocked to the iOS platform, and that there was no new killer feature required, iOS is, after all, the world's most advanced mobile OS.

What could the killer feature be exactly? Leave us your thoughts in the comments.