From FDL:
“Nobody really knows if Stupak can pull this off; there’s very little precedent.
If the vote occurs after the vote on the final bill, it would have to go through a very dicey reconciliation process. And as a concurrent resolution, it might have to exist as a standalone measure entirely, meaning it’s eligible for a filibuster.
Now, we don’t know what assurances are being made on the Senate side to keep this in. Remember, if anything from the House reconciliation sidecar gets changed, the sidecar has to go BACK to the House for another vote. At which point we’re in exactly the same boat that we’re in right now. Democratic Senate leaders have already said they would whip to make no changes whatsoever to the sidecar. So there could end up being a “conspiracy of silence,” where nobody says anything about the abortion language (though presumably a Republican might) and it passes through the Senate without incident. Or Joe Biden overrules the chair on the point of order, and Democrats are whipped to sustain it (though Republicans have said they would not agree to that and would vote en masse against it).
It’s about as clear as mud. But somehow, when something has to be done, the rules tend to melt away. It’s clear the House cannot pass the health care bill without Bart Stupak. That tends to concentrate the mind.”
In short, this is a smokescreen cover for Stupak's "Aye" vote on HR 3590/reconciliation.