with Sierra Nevada retiring their Wheat beer (which wasn't very stellar), they have in the last few months rolled out their new Torpedo, a coveted and highly quaffable Imperial IPA.
the next newest addition to their brewy portfolio is the Kellerweis Hefeweizen. it should officially be rolling out to shelves near and dear to you in the next few weeks. a new rollout takes time and i have no doubt that some regions will get theirs sooner then others.
take a deep breath.
and if the Kellerweis Hefeweizen is anything like the Torpedo, order a few cases right from the get-go because demand has been far out-pacing production.