It's unlikely a lecturer will change the course material this quickly. There's a lot of planning and work that goes into a class. They probably will change strategy for the next semester, though.

In addition, game dev is game dev. The skills are 90% transferrable. A university class (should, at least) will teach you about the foundational and general concepts, using a game engine like unity to put theory into practice. Classes generally don't use and teach a tool to teach how to use that tool specifically, but to teach something more general/foundational, that will be useful in the future no matter how the tech landscape changes.