As a member of the BN^ chapter that closed and revitalized, I can assure you we were on campus from about 1997 through fall of 2000.

We made a decision to revitalize the chapter and take alumna status while still in school rather than let it die with us in school. In winter 2001 (yep, spring semester after we went alum), APhi did an "open house" sort of presentation during round 1 of formal recruitment, then participated in rush fully afterwards. They were "revitalized" officially (charter returned) in 2003...so technically it was a third revitalization, but they kept the deuteron status.
Given their numbers from this year's rush, and getting updates from their advisor throughout the week (my mom helped them during polish days this year, so the recruitment advisor sent out updates), I am happy to see that our sacrifice wasn't in vain - I'm so proud of them!!!
Hope this helps clears up confusion...there is a tendency to forget that the first revitalization ever happened, which is painful (not going to lie) but I'm happy its working out now....hopefully if I have a daughter that goes to Duke, she can be a Phi too!!