Fair enough, these things have to happen. Hope the migration goes smoothly - in my experience server moves always take about twice as long as planned so don't stress if it bleeds into Sunday evening or Monday.
One thing I'd ask the admins - is there any chance of getting an archived backup of the older threads sorted before the move? There's some really valuable material buried in the haunted locations section going back years, case notes and first-hand accounts that would be a real loss if anything went wrong in transit. Probably fine but worth flagging.
Everyone else just make sure you've saved anything you're mid-draft on. Lost a long post about the Cannock Chase incidents once during an unexpected outage and it still stings.