The FCC released a Public Notice today 2/25, seeking comment on the sale of Rainbow-1 satellite and licenses to Dish (Echostar). It looks like the comment cycle ends on April 18th. My guess would be the FCC would make a ruling on this within 90 days which would put it no later than July 18th. Here's the link:
http://svartifoss2.fcc.gov/servlet/ib.page.FetchAttachment?attachment_key=419728
http://svartifoss2.fcc.gov/servlet/ib.page.FetchAttachment?attachment_key=419728