They used more models in any one of the prequel films than they used in the entire classic trilogy combined, and they will still be the top choice for ILM, so in that regards not a whole lot will change really.
So many act like CG is so easy to spot, but a lot of the times I see them pointing to these miniatures and models and real photographic elements.
I like how the original article made it out like LOTR used mostly models and Lucas uses mostly CG. As far as I can tell they are both running about neck and neck with their huge summer blockbusters in regards to their use of both models and CG.