It should yield some ok stuff. That stretching, some of the leaves have been eaten which means there's going to be some bug problems some more. Don't know where you are located but get some caging or something got to keep those deer and all them away. That's all going to play into how much you yield. More than likely when it does start to flower it'll almost double in size, going to have to worry about weight and branches breaking. Main plant looks ok as far as sturdyness now but looks thin from pictures. They going to need to thicken up if they going to want to support buds. You probably won't get to much buds getting real big and swelling together. Maybe some on the top but not to much. Due to all that stretching and the stretch that comes in the start of flowering, Could use more side branching growth. As far as an estimate not really going to give one. There's to much to factor in, as far as pot size, weather outdoors, if it's going to be raining a lot and your flowering your gonna have to watch for bud rot and all that, bugs, animals, etc. One day your good and the next day Mother Nature comes in. Heat can destroy you on a hot day too. There's def lots of room for improvement. Not putting you down or anything. Have seen some nasty posts in this. Just giving my input you can take or leave that's your choice it's your grow. Hope you get close to what you want or half. Either way cutting down something you grew and can smoke is an accomplishment in its own, good or bad there's always room to improve your grow.