How long does this particular strain flower for, if you know? If it were me, I wouldn't re-pot it at this point in time. Most of my plants get chopped at 8 or 9 weeks, and going by that, you have a week, or 2 left. The benefit you would get from re-potting now, in my opinion, would not be enough to outweigh the problems that you could run into with re-potting, not to mention I dont think it would be enough for the plant to do anything else this late in the game. However, if you are running a heavy sativa, which it doesn't look like you are, and had 4 or 5 weeks left to go, then yes, a transplanting would be a very good idea.