From what I understand, the airline lobby lost on this one. They were trying to prevent the Senate and House from agreeing...House said 1500 hours, and Senate 800 hours...now they both agree on 1500, so it is a lock.
The only problem is that this is only part of a larger bill, authorizing the budget for the FAA, so potentially the whole thing could get quashed, but it doesn't sound like that will happen...sounds like all of Congress is commited to getting the bill passed.