Dear BlkNotes,
I have to agree that, as a previous VA7 owner, I have found many similarities with the G 70, especially speaking of styles: if one listens to the demo's on the Roland US website and on the Roland Italy website , it's easy to see that the majority of the styles are actually old VA7/VA76 styles.
I really enjoyed the video demo's made at Winter Namm (they are on the Roland US website), but if you notice they focus is mainly on the new sounds (which are really impressive), while the styles tend almost to remain in the background.
So, if I were still a VA7 owner, would I upgrade to the G 70? Well, I think that I would definitely upgrade, if nothing else for the wonderful keyboard, which has the best feel I have ever tried; aside from that, I think that the new sounds and the new user interface (with plenty of buttons) are worth the expense as well. On the contrary, I don't think that the new styles ALONE would be worth the upgrade and, speaking of styles, I think that the Tyros, the PA1 X pro and the Ketron SD1 have more to offer.
Just my opinion, of course.