We've already had a half coup, and the military are firmly in charge.

The crunch time will be elections- even if there are no early elections called, elections need to be held late 2011. The current strategy is to cobble together Provincial support form MP's in the Provinces by various forms of bribery, often using proxy parties such as BJP.

Will elections be held if they cannot cobble together a coalition with enough electoral clout to win?
If the elections are held and the Dem's lose again, will the election results be overturned again?

Those are the main questions in my view. As Norts said, no reason to stage a coup' now- they've already had a quiet one anyway.