There is a trend in the MoD at the moment of launching the Fleet before all the sailors are on board. What you describe is yet another example of this. The Regulatory Articles within MAA are another example. The pace of change is faster then the speed of administration and an admin train crash will be the conclusion.
It would have been better to have made a proposal announcement with an effective date and then bank the info until all the ducks are lined up. But even this ideology has a habit of starting of as Nimrod 2000 taking a decade and then binning it as a bad idea.
Therefore perhaps at the highest level of Govt, they should have kept this to themselves until a workable arrangement was ready for despatch. That they did not means that rumour, counter rumour, and stress will flourish. In short, you wont get a definitive answer anytime soon.