^^^^^^Those renderings always come from AutoExpress sister companies and are usually reasonably wide of the mark and pretty dreadful photoshops.
I'd agree that the mk8 will be more of a mk7.5 though, VW aren't going to invest all that money in MQB for nothing, especially with their current woes that have barely even started.
For the mk8 Golf, depending on how close to production it is, I'd think to be looking at the just launched Tiguan as the newest and freshest face of the group it's the one that will have to wait the longest for a facelift - therefore it'll have the face the company want to carry forward. Basically the next Golf will be more angular again like the Tig with the bumper grilles following the shape of the ClubSport but in a toned down way.