Just to answer another question.
1) The parts that were re-scanned were not those. We had to do tests with several other things, and decided those looked better than the original ones.
2) Releasing all 3 movies at once would logistically be harder, and you would have to wait longer. However, they 'may' be released out of order depending on how things are going. Odds are ESB might be released first, we'll just have to see what works out.
Don't worry, we'll keep you updated.
3) Anyways, as someone else requested, another teaser from ROTJ:
Team Negative1