Aircraft ID challenge: Mystery aircraft at PLAN bomber base

Anyone can ID this aircraft? Spotted on Google Earth imagery dated Jan 2010 at the PLAN base of Changzhou near Shanghai, which is a civilian-military airport home to a regiment of H-6 bombers. http://thebaseleg.blogspot.com.au/2013/05/unidentified-aircraft-seen-at-plan.html

I’ll admit I’m stumped; posed this question on Twitter (@thebaseleg) and a lot of guesses (some good ones too) but the aircraft pictured just doesn’t tick all the boxes.