Yeah, what Chris said.
Or just buy the L59 G20s if you can't wait for L79, they perform really good and are not that difficult to score with even from the tips, combined with the L81 driver. However, don't touch the rocketballz, they're my only purchase I really regret. That 105 PW sounded tempting, but the trajectory of the longer irons is just too low for the ball to stick.
L83 G20 irons should however be useless now, they're in no way worth the price difference between them and the L59s, I rented them during the free weekend just to see the difference and I must say I like the lower level ones better (maybe I'm just used to them more). Bought the R11s though, they're great toys.
But you defenitely need to upgrade your wedges.
Here's a few sets that could work (all with either L58 or L81 G20 driver):
L59 G20 irons + 3w + 93, 75, 60y wedges or lose the 3w and go for L40-ish Ping wedges, 100, 85, 75 and 60y. And when you get to legend tees, you'll level up enough to get the L78 CG wedge and make your set a 3w + 100, 80, 60y wedges.
L79 Bladez + 3w + 100, 80, 60y wedges or no 3w (you won'r really need it with a 220y 3i) and lower level CG wedges (105, 90, 75, 60y) (less math needed = better scores).
Good luck with whatever you decide to buy.