Well that is all that is announced and under production at this point. This new trilogy is the continuing story to the original trilogy. You are right though, they will milk it and keep making them as long as it is making money.
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Actually, there are at least two stand alone films that have been announced as well. From what I've read before there will be a new Star Wars film each year for the foreseeable future. Don't take that as gospel though. Always in motion, the future is....