as i can not get a straight answer from dealership, can anyone tell me if specs have changed from MY16 uk spec

Not much. Depends on which model you're looking at. The biggest change is probably the replacement of the four cylinder 110 PS 1.2 l TSI engine with a three cylinder 115 PS 1.0 l engine. There's an MY17 thread somewhere, which should give you more information.

Does the Bolero and Amundsen get the 8" screen like its rumored to get in the Superb?