If we go on how long it took Star Trek to get from the drawing board to the big screen, then there is going to be a good few years for us to wait until new Star Wars movie is ready to view! Therefore, in the mean time, we can only guess or watch fan made shorts, just like the one below in order to get an idea as to what Star Wars will look like JJ Abrams style.
According to GcPr0ductions could the new Star Wars movies be as good as this?;
Source: Nerd Approved