I was doing a bit of reading and I found myself on a page from Green Car Reports, which was talking about the possibility of Land Rover bring small diesels to the US, I can only assume that they would make it north of the border as well.
The introduction of the new diesels from Land Rover are supposed to correspond to the change to Euro 6 emissions standards. I’ve seen several rumours that both the Tiguan and Amarok are supposed to have a refresh for 2014/2015, so maybe these two things go together. A redesign of some VW models to allow for compliance with the new tighter emissions standards, may allow those models to come to North America with no other emission modifications.
Time will tell.