Looking at the standings this morning, the only team in the hunt behind the Pens (in total points, that is) playing well right now in the entire Eastern Conference is Philadelphia (they're 1 point behind with a game in hand). Jersey currently is only 4 points behind the Pens, but they're playing no better than .500 hockey right now.
Happily, the Division has finally made up most of their games in hand on the Pens. Everyone is within 1 game of one another with the exception of Columbus (still 2 games in hand, but 9 points behind them in the standings). So, at least that variable is largely eliminated.
I'd think the Pens are pretty close to a lock for the playoffs now, but they should have legitimate eyes on 1st in the Metro. With 40 points still available to them the rest of the season, I'd think they have a fairly decent shot at earning at least 30 if they avoid major injury.