Very cool to see you hop hydro project in action! Glad to see the plants you got from us are growing well.
I don't doubt that you will see cones start to form when the lighting conditions are optimal to initiate flowering. However, like grapes, the characteristics of the hops will change based on the environment they are grown in. It will likely affect the flavor, aroma, alphas or oils in some way. This has often been said about tomatoes that are grown indoors vs outdoors as well.
Growing hops indoors is definitely possible, we just don't recommend anyone try to do it commercially. The hops depend dramatically on their dormancy period.
Anyway, it's really cool to see the project in action. I look forward to seeing the final results. Hopefully some day I can try two beers using the exact same recipe with one set of hops being grown indoors, and the other set outdoors.