I don't have an actual estimate of when it will come out.. This is my first baby sugar glider ever (I've been so freaked out about it, but I'm really excited about it now).. I noticed the joey when it was about 2 weeks old and I read that they will come out of pouch at 9 weeks.. Seeing little body parts sticking out is supposed to be an indicator that its almost ready to come out!
I'll try to take pictures when it finally comes out.. The best part is that it will ride on its moms back when its too big to fit in the pouch, they're like little monkeys!