three possiblilities:a) Shen was pressured to raise the...

three possiblilities:
a) Shen was pressured to raise the consideration and hence need time to find additional capital;

b) Shen's original financier fell over after tigntening credit, which means Shen needs look for a new financier;

c) Shen realizes some holdes in the old IE report, and thought to find some time to fix those holes, probably pitching more votes in the mean time, and get more shareholder friendly in the next round; (during the eng privatisation the bidder even hire a female consultant to communicate with shareholders to pitch the votes.)

I don't see a higher offer coming for sure, but the probability has increased somewhat given today's news; however the majority probability is still on the 35c offer, IMO.