I don't see why not tbh, given the amount of resource VW has to throw at it. Their entire diesel research budget for starters
Someone (oh it was you!
) posted a good article about it a while back, talking about while Tesla has good technology, they are still learning how to make cars in volume. One can't argue that VW has any problem with the latter, and Audi has most (all?) of the tech now. I think its really just a case of them figuring out how to make an acceptable amount of technology cheap enough to put in a Golf, and then sorting the battery.
I think we're not getting the model 3 until the end of next year? Given the pricing in the US it'll probably be £35-40K here, so can VW make an equivalent e-Golf for £20K by then? I wouldn't bet against them.