Politically, I believe it is likely the Senate will agree to the Budget measures, after some arm-wrestling. The groundwork has probably already been done, the flashpoints of the 2014 proposals have been removed, and the feeling that “it could have been worse” will make the proposals more palatable.
The Black Economy will feature on Budget night with the purpose of raising revenue and seeking equity for business. This should lead to a stronger tax system. But there is a need to balance privacy and ensure the rules actually work.