Actually, I think the Mets will pursue a similar strategy with Flores that they did in the second half of 2012: he will play mostly at third base, but will also see time at first and second. Again, I do not think he has the range to play an average second base in the big leagues. He has the hands and arm for third, and only started to learn how to read the ball off the bat from the postion this year. Obviously, the Mets will have David Wright for at least 2013, but if Wright were to get hurt, Flores might well be the best fill-in option at third base by early 2013. The 21-year old's bat looks close to ready as he hit .300/.349/.479 with 30 doubles and 18 homers in 130 games this year between advanced-A and AA. Giving him more time at all three positions will give him more ways to break into the big league lineup.
He's not going to make the team out of spring training, but he might well push his way onto the roster by July as long as he hits in Vegas. Considering he can kinda play first, second or third, there will be an opening somewhere because someone will get hurt.