This is correct. The bid is still capable of being accepted over...

This is correct. The bid is still capable of being accepted over the next two weeks with expiry on 22nd October. With PDN having over 70% it is more than likely that they will get to 90%. (If not, then there stated intention is to let the bid lapse, so there is still some risk).

I bought for a take over arbitrage at 14 and was facing a moderate sized loss if the bid failed but I chose not to sell after PDN tried to pull the bid because this result was always a possibility. On the other hand I did not want to increase my exposure either.
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My advice is free and worth every cent.