So you moved your feet but did not lose your seat.
For some reason I recall the Miami suspensions LaneSig is talking about as not instantly alumni-fying the current members though.
Another important issue for the OP to be aware of is whether a group thinks the campus is worth it. A school where the chapters have 200 people and a 60% Greek population is going to be one that they'll be chomping at the bit to return to. One with 40 member chapters and a 10% Greek population, not so much.
But we have no idea if the banning the original poster spoke of came from the school or from the national headquarters. Schools don't always consider things hazing that HQs do.