I can confirm that Yasa and Yuri are staying put in Ann Arbor. Students there are making their fall college plans, and talked to them prior to making their commitments.
Teaching a seminar is not the same thing as relocating.
I don't want to see any potential teams that form this year to shy away from Ann Arbor thinking the program may leave. For our part, we just got a partner's visa in order in the fall to skate in Ann Arbor, so it would be a big hardship to alter that visa to go elsewhere.