The new Sony FE lenses are already available for preorder at Calumet Germany: The 16-35mm GM will start shipping on August 10 and the 12-24mm G on June 6.
Sony 16-35mm f/2.8 GM at Bhphoto, Adorama, BestBuy and Amazon. In EU at Calumet DE, WexUK, Jessops.
Sony 12-24mm f/4.0 at Bhphoto, Adorama, BestBuy and Amazon. In EU at Calumet DE, WexUK, Jessops.