Farewell Mr. Dion

... Well, it's simple. In the next session of parliament, it is unlikely that Mr. Harper will make any false moves upon which the Liberals could capitalise. Actually, it is unlikely that Mr. Harper will make any real moves at all.
... Therefore, assuming that the Liberals will charge out cautiously clinging to last year's unrealistic offerings of implementing Kyoto and abandoning Afghanistan, it is 100% certain that they will remain in Opposition for as long as Mr. Dion is leader. With power for it's own sake as the party's only purpose, they have reached a dead end.
... Would a new leader make a difference? Maybe. Some hope is better than none.
... Or, maybe it is just great fun to fan the flames of their deserved division.