Specifically, the company has dibbed the drink's return "Z2K," an homage to Y2K, when there was a fleeting overblown worldwide panic that global computer networks would crash when the date changed from 1999 to 2000. In other words, they're just letting everyone know Zima won't be around for long this time around, so you should stock up while you can.
“Everyone needs to try Zima once -- it is a novelty," Dilini Fernando, MillerCoors senior marketing manager for innovation, said in a press release. "If it’s not for the crystal-clear appearance and familiar citrus taste, it’s the iconic fluted bottle. So, if you didn’t get your hands on a six-pack last year, now is the time to see what all the hype is about and stock up."
To get your hands on a six pack of the stuff (or twelve, for your Z2K bunker), you can scope out which stores in your area are selling them at Zima.com.