It's really hard to say, especially this early in flower.. A Lot of time separates you from harvesting that plant, and a lot could do wrong in that amount of time. Plus genetics play a big role in it. I'd say that, judging by the long fingers on her, you've probably got at least another 10weeks until you need to be worried about how much she's gonna give you. Looking pretty healthy though. I'm not sure what your feeding or how much, but I would try to dial back the nitrogen a bit. You should be starting to see a little nitrogen deficiency at this point, and your leafs look dark green maybe even some clawing. Also, I would try to train her a bit. It's a little too late to get extreme with it. I would poke/drill some holes right at the top of the pot to tie string through, and get some twine (the less frayed the better, it'll stick to your buds). Tie a regular old box knot to the hole in the pot and a slipknot to a tall branch, and CAREFULLY slide the slipknot down to lower the height of the branch. Do that to all the taller branches, trying to even out the canopy as much as possible. Then lower your light however much you were able to lower your tallest branch. After a day(or even a few hours) the growing points will be facing back up to the light. You can repeat this little by little each day, while disturbing the plant as little as possible. This is one of the best ways to improve yield aside from growing a healthy plant. It's the same concept as scroging but I prefer my method as it keeps the plant mobile in case I have to move it. It increases the penetration of the light (I know, I said penetration), and the amount of usable light the plant receives in general.
In nature the plant grows with the Christmas tree shape because of the natural rise and set of the sun. Obviously we don't have that in the grow room, so by keeping the plant as low and wide as possible you'll maximize the lighting. Check out vertical growing if you get a chance, it is the ultimate indoor growing method for wasting as little light as possible. Never done it personally, but I love looking at peoples' vertical setups.
