could be even sooner if you flip in late March, since you've flipped I believe they have already gained much needed green mass to cheer you with a nice flowers. It takes time of course but not that much, so I guess they'll show you their trichomes at the end of summer
the plants will "think" that the summer is back again so they will re-veg on you. On one side - they may grow a bit bigger, gain more mass, but they will most likely stop producing flowers so...perhaps you'll need to somehow maintain the 12-12 schedule for them...
For the mysterious seeds those buds came up to be a very well grown! Alot of efforts put in them, and I can tell - it's a great feeling when your ladies has grown from "wtf is that?" into deliciously looking buds!
crazy old shoe is overpowered! But about the sun, the sun is good in dosages, not too bright, some folks are placing their pots near a big window for the day. The bad thing is that not many leaves get their sun through the window and its a bit decreased so I'd say put them outside for that