According to photorumors.com “First we will see APS-C mirrorless lenses for Sony NEX and Samsung NX. Tamron is designing 2 compact zoom and one macro:
* Compact standard zoom: 24-50mm f/3.5-5.6 VR
* Compact telezoom: 75-200mm f/4.5-6.3 VR
* Macro: 90mm f/3.5 VR”
We can’t confirm the rumor now.