The "voluntary severence scheme" is an interesting one... since we already have screeds of agreements relating to redundancy, retirement, resignation etc.
My guess is that this is aimed at the many workers who are on mobile grades and whose jobs are moving to the Solent Business park in the near future... but don't wish to go. At present you either move or you resign. If they're now going to offer pay-offs of some kind to these people then I think they've got a winning formula for many in PCS at least.