I don't know anything about a 913 model, but I will ask this: have you tested the 910 D3?  Did you like it, and were you satisfied with the overall performance of the driver?  If so, then just get that.  I'm always amazed at players who experience buyer's remorse after purchasing something they love and then getting upset when something comes out a few weeks later.

First off, think of it as an arms race; there will always be something else coming out, but that doesn't mean you'll have to get it.  Had I been able to find a new set of 710 AP1 irons, I'd have used them instead of the 712s I bought.  But being left-handed, my inventory and demo pool is significantly smaller than yours.

Bottom line, I wouldn't worry about the 913 right now, if I were you.