He's quoted in the Motherwell Times as saying that qualifying for Europe would be a great "parting gift", so he's definitely offski. Best of luck to him.
As an aside, the Cup semis are scheduled for the weekend of April 10/11. We're due to be at Parkhead on the 10th, so I guess that'll be moved to midweek.
Motherwell v Hearts
was Wednesday 24 March at 7.45pm
now Saturday 13 March at 3pm
St Mirren v Motherwell
was Saturday 20 March at 3pm
now Tuesday 16 March at 7.45pm (due to St Mirren being in the League Cup final)