Both the NDP and Liberals are wanting to win at least a minority in this election.... the NDP was that they were wiling to consider a coalition for the good of the country, the Liberals were not, even though they had roughly the same chances of success on their own at the time.
If either wins a minority, then the other will likely find enough common ground to support and maintain a stable government. Various platform ideas from the the supporter would find its way into legislation.
If the Conservatives wins a minority, then it is possible for the NDP and Liberals to not grant them the ability to govern, since there is not much common ground with the Harperites.
It is possible that the NDP and Liberals may form an actual temporary coalition to govern Canada jointly, with each party having a number of cabinet positions, etc. The arrangement could last a full four year term.
The Conservatives, with a minority, would have no power in the face of a combined NDP+Liberal majority coalition. Expect Harper to resign his seat in Parliament and his position within the Conservative party..
The interesting question of a coalition is what happens at the end of the term... how do the coalition partners distinguish themselves from the other in the next general election.







