In short - yes! Google releases its products in stages and the school can control when you have access to these for a limited amount of time.
Eventually, Google Docs will disappear, but not for a considerable time yet - nobody knows exactly when but there is always at least a couple of weeks' notice from Google which will be passed on to you.
This means that you are among the first in the domain to explore the ins and outs of Drive and some might say that you might as well not put off until tomorrow what you can do today. Drive is coming. Docs is going. That's the bottom line. When you feel confident navigating Drive, you can decide to give it a go.