No I think he will not -because he doesnt have weapons to defeat Djokovic and Federer.
At least he didnt have them until now.
I agree with you. I think he'll be able to be on the last rounds of some Grand Slams this year, for sure be in the ATP World Tour Finals, but I don't see Ferrer winning any Slam. He deserves one title like this, Ferrer is a player that trains a lot and puts lot of effort practicing every day, he is a hard worker and more aggressive than Nadal and other clay baseline players (for this reason he is able to win lot of matches on hard and grass courts). However, as cveks
says, Ferrer has lot of consistency: he keeps himself at high level all the year and he plays a serious tennis from the baseline. This helps him in order to win most of the players that are on the tour (including exceptional players like Berdych, Tsonga, Del Potro, etc.). But I don't see him beating Djokovic or Federer (and Murray if they play on grass or hard) in Grand Slam tournaments. He can upset some of this players, but not in a Grand Slam final.
Maybe Ferrer will win some clay Masters 1000 tournament this year. He deserves it. More than a Masters 1000 title? We will see. I'm stating my opinion thinking about the level that Ferrer showed last year. He has played well on Abu Dhabi, Doha and Auckland.