Just a warning
If you plan to leave 6 months after 02 Apr 12, consider putting your application in now as you have the option of setting any date (up to 2 years I believe).
The danger of waiting until Apr is they could extend PVR minimum waiting times to allow for reshuffling after the 'final' round of redundancies. There would be no disadvantage to pressing the terminate button early if you are absolutely sure you want to leave at a given date (unless you are Aircrew where 'flying pay' is reduced).
The other advantage of applying early is you will be able to start resettlement before the redundees pile out, taking priority, and affect your plans for training etc.
DON'T press the terminate button unless you are absolutely sure you want to go as the chances of changing your mind are minimal.
Good luck for the future.