This would be certainly good news if they would make it for real! A brand new Tamron patent shows the design of the new 28-320mm f/3.5-6.3 Full Frame E-mount lens. It could become a cheaper and more broader zoom range lens compared to the Sony 24-240mm f/3.5-6.3 OSS that will ship in March 2015. I hope they make it!
Patent found via Egami.