Delete Accounting Period - what will happen to locked payroll transactions?

I had the last payroll of 2007 dated on 12/31/2007, which mistakenly happened to automatically be assigned to the end-of-year-adjustment period instead of Dec 2007.  Payroll records through Perquest can't be touched at all (not to reclassify accounting period or department, or anything).  But I do need the 12/31 transactions to fall into Dec 2007.

Here is my plan:
1. delete the end-of-year adjustment period.
2. expand Q4 and Dec 2007 period to include 12/31/2007
3. recreate end-of-year accounting period to become 1/1/2008 (moving the few 1/1/2008 transactions to 1/2/2008).  Expand 2007 to include 1/1/2007-1/1/2008.

Will this auto-reclassify the payroll records to Dec 2007?  I suppose the alternative is that the payroll records, upon deletion of the end-of-year-adjustment period, will have a blank period, and not-re-assignable which would be the worst of all worlds.