The Kobe 4 will get what's looking like a one-off retro this year as part of Nike's "Fade to Black" Kobe pack.
The set starts out with a white Kobe 1 and gets darker as the models progress, with the Kobe 4 here ending up in Nike's grey shade "dust."
When news of the Kobe FTB pack first broke, the sneakers making up the group appeared on a line sheet with dates attached that had the first ones releasing in March. This shoe was listed for March 19 there, but that date could have been a retailer ship date and not a proper sneaker release date. Sole Collector will have more info on that as it's available.
Nike Kobe 4 "FTB"
Style #: 869450-005