I know the conditions haven't been repeated, nor has a sitting GG refused any Canadian Prime Minister's request since.....
Prime Minister Harper hasn't lost confidence yet either, likewise (as mentioned above) the Liberals have ruled out a formal coalition with the NDP, unless either party had more seats than the Tories, I see no reason, likewise no precedent (since King) for the GG to not grant the Prime Minister's request for another election, which of course are also in his Reserve Powers, and have been followed as convention since King-Byng..........as such, if the Tories received a ~150+ seat minority, I see no reason why they won't govern.........
Inversely, if one of the Liberals or NDP win ~150 seats, I would expect them to form Government..........