iOS 9.3 is coming in the Spring and will introduce Night Shift as well as a number of other new features.
Display Analysts See Retina iPad Mini Updates Coming in 3Q 2013 and 1Q 2014
"We see two refreshes coming. One in the second half of this year, then one in Q1 [first quarter] of 2014," analyst Richard Shim told CNET late Sunday night.CNET's report had initially cited Shim as saying that the Retina display would not appear until the early 2014 model, but less than two hours later the report was revised to state that the 2013 model will also have a Retina display. The new quotes from Shim do not actually refute the original claim, but based on CNET's reporting it appears that additional information he provided does indicate that a Retina display will be included in the next iPad mini.
"The Q1  device will have a Retina display plus an updated processor," Shim added.
KGI Securities analyst Ming-Chi Kuo last month reported that technical challenges related to production of a Retina iPad mini will likely see the device debut somewhat later than many have expected. While he declined to offer a specific prediction for the iPad mini launch, he did outline three scenarios showing launches in the September-November timeframe.
Rumors of Apple looking to accelerate its upgrade cycles have persisted for several years, and they did come to fruition late last year with the introduction of an updated iPad just seven and a half months after the previous model. That launch did, however, coincide with the debut of Apple's new Lightning connector, so it is unclear if the short cycle for the full-size iPad is indicative of a larger trend or if it was simply a one-time effort to adjust Apple's launch timing and roll out the new connector across all of its latest-generation mobile devices.