Because the 3 launches are densely packed for August-September, and delay in one means delay of following ones, and delays almost always happen. Then there is a big hole and next launch is for late November. That alone is enough to move the 4th launch after the most recent one into 2015. So nah, we will not see attempt of land recovery this year.

I am not a naysayer. I am very enthusiastic about what SpaceX does. Especially the reusability. But i just want to remind that they never stick to their schedule (that's generally hard to do in the rocket business), and their current schedule for the rest of 2014 looks in a way it will be almost certainly broken even if slightest issues arise.