quraishim, the argument for buying: when the RNS comes out this week, the price will be marked dramatically up or down before the open. The current price factors in poor expectations so the upside on good news is probably greater than the downside on bad news. 45p (25% loss) or 100p (66% gain) have been mentioned here and don't seem ridiculous.
The argument for waiting: the Chairman (I think, it might have been another director) has said the odds are about 50/50 - the flip of a coin isn't exactly investing.