Microtech Small Arms Research has their firearm website back online. This has been long rumored since their bankruptcy. It appears the new STG-E4 will be offered in 5.56mm and .300BLK but no mention of the former 7.62x39mm, 5.45x39mm, or 6.8SPC Remington offerings.
Update (2012 July 23): The Firearm Blog kindly linked back to us on this story. Their (his) policy of “Firearms not Politics” is what has kept me as a frequent reader; without question it is the best gun related blog online.