Neither Bill Shorten nor Anthony Albanese have said they'll do it yet. I like Albo, but he doesn't look too good on camera, which shouldn't matter but it does.
Mind you, Abbott is an ugly bugger on both the inside and the outside. I wonder how long before the velvet glove will come off: in the last month he's been uncharacteristically nice.
There is always the chance Abbott'll get rolled eventually in favour of the much more presentable Turnbull, who does not have Abbott's history of aggression and nastiness. Time will tell.
Meanwhile all Abbott's anti-environment and anti-boat people plans will get stuck in a hostile Senate. Honestly Machiavelli would feel quite at home in Canberra these days!