MSU is probably the best DO school in the country, I imagine the only WL movement we see would be people going to MD programs. Tuition for OOS is 65K which isn't the worst (50K is about average), but may cause some students to pick a different school (say PCOM with scholarship).
That being said, I would normally expect very little WL movement but MSU does have 3 tiers of WL. I imagine they wouldn't have 3 tiers unless they regularly use up at least most of tier 1.
I say prepare to reapply or go elsewhere (if you got another A), but keep a small amount of hope of you are a T1.