Now that a coin flip has determined that the Giants, not the Jets, will play the first regular-season game at the teams’ new $1.6 billion stadium at the Meadowlands, the next question is whether each team will sell out. The Giants say they are about 1,500 licenses short of selling out but have been at that level for at least two months. The Jets are not saying exactly where they are in the sales process other than to say it is going well. “We expected a drop-off after the season, but they’ve kept up at a strong pace,” said Matt Higgins, the Jets’ executive vice president for business operations. “We’re not putting out claims that we’ll sell out tomorrow, but we expect to sell out before the season.”