Yes, the legislation has been passed by the US Congress. However, it's wording was carefully scripted so that it was NOT a "continuation" of the State Quarter series, but rather a completely separate series that just happened to be on a similar theme (i.e. the geographic divisions of the USA). That way, state quarter collectors can opt to include them, or not.
And, of course, they're hoping not to get sued by all the manufacturers of State Quarters maps, folders, booklets, albums etc. whose products suddenly became obsolete.