Unfortunately - for your analogy and the GOP - the reversal of fortune won't be coming this early.
The GOP has no party.
The GOP has no message.
The GOP has no flag bearer. Save for Palin, Jindull, and Rush. Good luck there.
The GOP has no plan.
The GOP has no platform.
The GOP has retiring members coming up that probably wouldn't win their seats back anyway.
The GOP has to first find it's voice and direction before it can find it's way back into Congress.
That voice is being found rather quickly, thanks in part to the actions of the Obama administration.
The message is returning to its roots. Basically, the GOP realized that it got away from its priniciples, which is why they got beat up in '06 and '08.
The Dems didn't have a plan or a platform in 2005, either. The GOP's blundering (sprinkled with political scandals) spelled their defeat. And at the rate the Democrats are going, the exact same thing can happen to them.
We don’t know who will emerge as the “flag bearer” in the GOP. But, that doesn’t necessarily matter. If you had told anyone in 2005 that someone other than Hilary Clinton would emerge as the Democratic nominee for the 2008 election, you would have been sent to urinalysis.
The Dems eventually got one; but, it wasn’t the one heavily advertised. We could see a candidate come out of the blue and turn the tide. You will recall that it wasn't until McCain picked Palin that he actually started surging ahead of Obama in the polls. Unfortunately, the economic crisis (and McCain's reaction to it) spelled his doom.
We don't know what the political future may hold. But, to suggest that the Dems have a lock on the White House, Congress, or the Senate is rather silly. We've seen the shift happen before (just a few years ago), and if this stimulus causes more problems than it's supposed to solve, the Democrats might be flying out of office in the same fashion as the GOP did.