The possible outcomes:
Win the case: The Government wins the High Court case by maintaining it is a matter for the legislature and not the courts to decide. This allows the coalition to kick the by-elections well into next year, without giving any specific date.
Lose the case: The Government loses the High Court case, forcing it to name an early date for the Donegal South-West by-elections. Threats of court cases immediately follow for Dublin South and Waterford, with early dates named for all three by-elections.
The Government signals a date for the holding of the by-elections in spring 2011, along with the Dublin mayoral election and the children's rights referendum.
But the chances of the Government getting that far would be narrow.