I read the "machete order" article.
It's all a matter of perspective. The author has a "Luke centric" perspective. Nothing wrong with that.
On the other hand, there are other perspectives.
Consider: "The rise, fall, and redemption of Anakin Skywalker."
From that perspective, you have a clear pathway. Eps I, II, III, Rogue One, IV, V, and VI. VI ends the saga (with Anakin's redemption). No matter how many more are made.