"As I understand it"
If you honk, you'll get exactly the same as you do now in 2.1: you can see the planet's surface in the System Map; and if you zoom into the Surface Map you'll see a wireframe.
The difference will be if you target the plan and scan it* : if you do such a scan on a planet in 2.2 you'll be able to see the stylish new textured Surface Map when you zoom in. In 2.1, you still just see the wireframe in the Surface Map.
(* I think any discovery scan will do, unless they've changed their mind to specify only with the DSS)
Thank you for the concise response!!! Everything i needed to know.