No, this is highly unlikely!! This is the government we're talking about.

If some type of DA passes congress, we'll most likely have to apply for it via a new form or an updated version of the current I-485 form??? If that is the case, it will most likely provide a temporary EAD while the form is being fully reviewed and approved.

That is the current process for AOS, so it will probably be very similar to the current process.