What do you expect to come out of all of this?
I expect another election in a year or two as too many people have left and there will be too much conflict within parliament.
Really unpredictable. A lot depends on the High Court's interpretation of s44.
Losing the senators wouldn't be a huge loss (though Xenophon would for his own party, given it's named after him).
Losing Barnaby Joyce or Ann Sudmalis could be a problem. They would both go to by-elections. If they lost either of those elections, they would be in trouble. On current polls, Ann Sudmalis' seat could be expected to swing to Labor, seeing the government lose their majority.
Likewise, Barnaby could be in trouble. He won with a very healthy majority, but one wonders what this latest kerfuffle would do to his popularity. No one could really say. If he had Tony Windsor run again (particularly if Barnaby decided not to stand...which could happen?), then he might be in trouble.
In that case, government would fall pretty quickly. It would be a minority government with a cross bench that doesn't like it, effectively.