Yep , I'd take it as read that they would convert- theyre payable in a year anyway. Of course 2.5p per share would be added to the cash reserves and the company wouldn't have to pay 7% interest on the money.
I daresay a proportion will be sold but would expect many to be kept in an improving company environment. Also the price has been driven down and clearly oversold to enable a cheap price. Perhaps people have sold knowing they can buy back at 2.5p. Fair value IMO is at least 5p short term. 10p if the new contracts are signed