There's a new facebook group appropriately called TVXQ US fanmeet 2012. The site isn't official, just a group of American TVXQ fans who feel gipped. Their mission statement is below.

Our voices in America are finally being heard with both SMTown LA '10 & SMTown NYC '11. It's time we raise our voices again to have a TVXQ fanmeet in America.
Like the page if you agree!

Americans, like the page. Lets make it blow up so TVXQ can't skip over us!