Vadsamoht already addressed most of your questions but I'll elaborate on one of them and answer the one that he couldn't.
Very soon. We just submitted a patch to Sony America and Sony Europe and that should go into testing any day now. We - and by "we" I really mean Marvelous AQL - should be submitting the patch to MS Japan(*) and an updated build to Sony Japan for us within a day or two, and those should go into testing soon after as well.
To be clear, Fukua will NOT be DLC. She is part of the patch that we submitted, which you'll be prompted to download the next time you launch the game after it's release. That means she'll just be part of the game once you grab the patch.
We're aware of this issue, and we have implemented a fix into the patch we've submitted which we
hope will resolve this issue.
In the meantime, we have a couple of posts on Facebook with updates about the issue where people have posted solutions that have worked for them:
Post 1 -
https://www.facebook.com/skullgirls/posts/675037349230429
Post 2 -
https://www.facebook.com/skullgirls/posts/676035912463906
There's also a thread here on Skullheart that addresses the issue, with the solution that people have had the most success with listed in the first post:
http://skullgirls.com/forums/index....l-palettes-locked-bug-and-locked-stages.2757/