According to John Ourand of the Sports Business Journal, the NFL will release the 2013 schedule on April 16th. This report has also appeared on SB Nation.
Source: NFL releases its schedule April 16, giving the league 3-1/2 weeks to work out an agreement with MLB/Orioles for the kick-off game.
— John Ourand (@Ourand_SBJ) March 21, 2013
What we know for sure is the schedule is always released before the NFL draft. This year the draft is scheduled to take place from Thursday April 25th through Saturday April 27th. So even if the report of the schedule being released on April 16th is inaccurate, it will definitely be right around that date.
We do know who the Jets 2013 opponents will be, that list appears below.
New York Jets
Home: Buffalo Bills, Miami Dolphins, New England Patriots, Cleveland Browns, Pittsburgh Steelers, New Orleans Saints, Tampa Bay Buccaneers, Oakland Raiders
Away: Buffalo Bills, Miami Dolphins, New England Patriots, Baltimore Ravens, Cincinnati Bengals, Atlanta Falcons, Carolina Panthers, Tennessee Titans