A way old article about XSEED that I missed at the time that includes both good news and bad news.
http://www.destructoid.com/interview-xseed-executive-vp-ken-berry-315659.phtml
The good:
Dtoid: Speaking of Senran Kagura, initially, XSEED seemed cagey about releasing that series here in the West. But, lately, we've been getting all of them. What changed?
Berry: Due to the subject matter, how it would be received at retail, or even by fans for that matter, we tested the waters by releasing Senran Kagura Burst as a digital-only title on the [Nintendo 3DS] eShop. That was a big success. The fans loved it. And despite some criticisms from the press side for bringing it over, overall, it was more positive than we expected. Plus, the sales numbers were there, so we decided with the next one, Shinovi Versus on PlayStation, to give it a limited physical release and see how it went. That also exceeded our expectations.
The bad:
Dtoid: Oh, I actually wanted to ask you about that and Valkyrie Drive.
Berry: So Uppers does have some elements in there that we will need to get a better look at to see how much of an issue it will be in the US. And Valkyrie Drive, pretty much the entire game is based on that kind of stuff. That's another one we're going to have to learn more about to see if it's even feasible to release in the West as they are. Because, if we have to edit them down too much or censor too much content, then, at that point, we have to consider if it's even worth doing. Because the fans that want the game, they want it uncensored, and censoring the content isn't going to appease the people that had no interest in buying it anyways.
Eep. I hope Uppers makes it.