While the plants themselves look great you allowed them to out grow your available grow space. Plants continue to grow even after you flip them so that all needs to be taken into account. My guess is that had you tucked them under the scrog a little longer before just letting them head for the light you would have been fine. One thing you can do is bow the branches over to lower them some though keep in mind as they get fuller they also get heavier and you may need 2 supports per branch on pulling them down and one holding them up to prevent branch breakage.
As to how much longer do you have? Well for one it would help if I had a clue as to how long they have been in flower. Always a good starting point. Also what strain is it? Different strains flower quicker then others. but just from looking at your bud development I am going to guess guess your around day 30 to day 35 in flower, if thats the case, it will be a while. If I am in the ball park with my guess, now is the time to start thinking outside the box, smoke a bowl and let your creative juices go to work.
Best of luck with your grow and keep us updated
