It might, the film problems will definately be cleaned up. I expect it to be better on some fronts for sure, I expect Moth3r's will come out better in some aspects than the OUT as well, (and there are likely to be some scenes from PAL transfers that have more detail than both the OUT and the X0 project) but there are likely to be scenes that have more detail on the OUT unless Lucasfilm really screws it up.

But the X0 will be the only version so far that fixes the film artifacts and that alone will make an more enjoyable viewing experience.