Well we won't know anything until the third film is out. Hayden Christensin was horrible acting wise but for looks it worked because he in a way looked like little Jake Loyd grown up. That was the only aspect which was good.
Now that I saw one of the sets for 3 with Hayden standing in it. He now has long hair and he looks more like Luke Skywalker. He looks much better than how he did in 2 I can guarantee you this at least. We will just have to see for the rest.
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