Has there been an official update concerning the sunset dates for v2009 ?

Currently the latest USGBC publication, LEED Certification Policy Manual, does not state anything (published jan 2012).

Can I assume that this quote is an official sunset date?

"In response to concerns about the changes in LEED v4 being too abrupt, USGBC announced last year that it would ease into LEED v4, with project teams allowed to register for either LEED v4 or LEED 2009 until June 1, 2015, after which only LEED v4 will remain open. (Projects registered under LEED 2009 will be allowed to complete the certification process under that system as long as they do so before it “sunsets,” which could happen as late as 2021, according to precedents.)"

Just want to make sure I am distributing correct information.

thanks.