I think the election will begin the unravelling of GDS. For all the good work that has been done (such as in OPG on lasting power of attorney), there has been a litany of failures, mostly limited to an attempt to interact with any service or solution of any great scale.
I think GDS would have been better served remaining as a small, agile delivery body rather than trying to fling its weight about in the departments by determining strategies. Without the political nous of Francis Maude giving them air cover, I can't see the big departments actually bending the knee to them for much longer. I'm struggling to think of a politico with the amount of capital in the bank to maintain such a grip on departmental spending as Maude had.
That said, Maude's appointments - Maxwell being the obvious one will surely be quickly out the door should anything other than a Tory led government end up being returned in May.