I know Latvia just passed a bill that all education courses be taught in Latvian, however im not sure if that extended to the uiversity level. It might just be for public schools. It definately pissed off a lot of Russians who still live in latvia.

When I was in Riga, seemed like a good number of people spoke english so who knows, maybe you would get lucky.

Also, you dont have to necessarily go on a school program. Look at what your school accepts for transferring credit. A number of colleges dont have a program, but will be affiliated with another university or program and it is very easy to transfer credits.