I'd re-pot her, but I grow in soil and tend to give my plants a pretty big root space if possible. I know some folks pull off pretty big plants for the pot size, but they are constantly feeding and watering, since the plant will go through nutes and water real fast in a small pot.
Also, I would open her up once she gets back to the greenhouse, before she starts to flower. That way all the bud sites get plenty of light and air flow, which will help with flower production, and decrease your chances of mold. If I were doing it, I would probably get some long plant stakes like you got, and once she is in final home, stake those branches out sort of a 45 degree angle, away from the plant. That will make her take up lots of space, but also be able to grow more bud!!
White Widow strains tend to not get as big as your plant, depending on how those " Feminized" seeds happened, the mother could have been pollinated by another plant that went "Hermaphrodite" , that is, a female that got stressed, and so started making some pollen sacks. Could be some type of cross.
No way to really tell for sure if it is actually hemp, or just a cross of a couple variety's of Marijuana, until harvest, but my guess is on just some type white widow crossed with a big strain.
If it were me, I would just keep growing her out, once she is in the flowering window, harvest some and smoke it! If it don't get ya high, well, at least ya got practice growing, if it does, you will have one nice big crop of bud!!