The article states that Apple was actually planning to release the Apple TV refresh later this month. Unfortunately, the release of the device was pushed back until later this year for reasons unknown. 9to5Mac writes that this new version of Apple TV will finally feature an App Store, along with a new "tactile remote", making navigation easier.
The delay could be due to Apple wanting to find more partners like HBO, with its HBO Go service, to add to Apple TV. So far there's no word from the fruit company, but Monday is Apple's "Spring Forward" event, keep your fingers crossed.