D-Day Monday?

UTV’s Ken Reid has heard hints of a more comprehensive deal.

It is likely they will make a will make a statement confirming they are determined to press ahead and that they have reached agreement on the handling of parades and the Irish language.”
“I wouldn’t rule out the appearance of the British and Irish Prime Ministers at Hillsborough Castle.”
“It is also likely that by the close of play on Monday Peter Robinson will be back as First Minister

Eyebrows would be raised if Peter Robinson returned unless at the very least he’s cleared by counsel.
But who could stop him?