No, you definitely don't need to have pro, you just need to have the right software. Definitely.
The more I read about the differences between Pro and basic on the Mk8, the more I conclude the differences are (in Germany):
* gesture control (its crap)
* nav on both screens at once (its not actually different hardware, its definitely VW enabling it - on the Mk7 it was different hardware)
* extended voice control - no idea what extra things you can do, but its more
* a three year guide and inform subscription, rather than 1 year
As I say, that's Germany, quite what UK/Ireland offers....
Basically anyone ticking the 1600GBP option box right now is bonkers - and I have had NavPro twice previously on Mk7's.