Watch the video from minute 2.35. The Tamron manager says that they will soon announce lenses for the MFT system.
As you know Tamron already released on lens for the E-mount mirrorless system, the 18-200mm F/3.5-6.3 (here on eBay). Let’s see if they will release such a huge zoom lens for the MFT system too!
Thanks Noflux for the link!