You think they'll defend it? The contours of the bill have been known for weeks now but our House Pubs have been conspicuously absent. Why would they show up now when they've been sitting on their dicks for the last few weeks?
To be fair to you, I have no doubt they'll show up to gloat. But it won't be to defend the bill on its merits. It will only be Team A > Team B. And there are two reasons for that. (1) They have no idea how the bill could be defended on its merits, and (2) Nothing matters except a "win" over Team B.
So congrats, Team A. You bought the farm. Let's see what it produces over the next few months.