The season will end after the games on April 27th and we will officially enter into the off-season.
The extension period will be immediately following the end of the season from April 30th, 2013 @ 12:00am to May 13th, 2013 @ 11:59pm.
The amnesty buyout will be directly following that starting on May 14th, 2013 @ 12:00am and going until June 25th, 2013 @ 12:00am or until all teams have submitted or forfeited their buyouts.
Trading will open up after the amnesty buyout period is complete that being on June 25th after 12:00am or when everyone has submitted or forfeited their buyout. So if everyone is quick about their buyouts then trading will open quicker.
Entry draft will start on July 6th, 2012 @ 4:00pm EST and draft lottery will take place on April 29th to determine exactly who gets that first overall pick.
Note this is a draft lottery for the first pick only, Rangers will have the 1st pick of the 2nd, 3rd & 4th rounds no matter what.