How to obtain more bacteria culture from already developed colony in HS medium

I have a freeze-dried lab sample of pure Gluconacetobacter Xylinus (form. Acetobacter Xylinum). I am about to grow this colony of bacteria in a standard Hestrin and Schramm medium (HS) of 1000ml volume. This will allow me to run 10 different experiments (100ml each).

Two questions:

Question 1: Is it possible to take 100ml of medium with already fully developed bacterial culture inside and mix it with 900ml of pure medium to effectively grow another 1000ml of bacterial culture? This process would allow me to keep "cloning" the initial bacterial colony indefinitely without the need of purchasing freeze-dried samples every time I need to run experiments.

Question 2: Is it possible to keep the already fully developed bacterial culture in a 100ml medium for longer periods of time (months)? Bacterial culture will keep growing in a medium up until carbon, nitrogen, and oxygen resources are depleted. What happens after - will it simply die (after approx. 20 days) or will it enter a hibernation state in which addition of fresh nutrients will allow it to grow more?

Thank you.