There is an interview between Maggie and Richard regarding a possible US tour :
Maggie Bloodstone: Well, first thing we would love to know is: When can we expect you in America?
Richard Kruspe: Good question. [Laughs.] Actually, we talked about it today, a lot. What we plan to do right now, is a lot of things – we’re not 20 anymore, so things have changed for us. At the moment, it looks like America is the only market where we cannot provide the same show as we play in the rest of the world. [1, see footnotes at the end of the article] So, we have to be balanced, like, what makes financial sense? One of my dreams is Madison Square Garden – just to play one show and to feel out, like, if there is a need for us, are people waiting for us, what can we do, what would be the next step? It can change, nothing is set in stone, nothing is confirmed, but we’ve talked about what’s the best thing, so the fans are happy and the band is happy. But I’m a big supporter of the American market.
You can read the whole thing here: www.sgn.org