Chances of Hardik replacing Ishant are very very less.
It's the last test of the series, so two pacers can be given workload given that their workload has been well managed by not enforcing follow-on. Two Indian spinners can bowl 40 overs each in innings unless the totally our of form Aussie batting bats like Taylor, Waugh, Ponting, Border, Steve Waugh.
Better to have a look at wicket though and take decision - obviously the captain will do so. If it's a spinners wicket, then two spinners will be normal for our team. Over that if we win toss, then that's icing on the cake.
Personally i would go with 3 pacers and 2 spinners combo (Replace Rohit with Hardik Pandya,Replace Ishant with one of Ashwin / Kuldeep in that order). That's my wich though.
Having said that, this is the team that i think think tank will play given Rohit deserves a spot in test team as per them:
They might as well ask Rohit to open just to keep in in team and accommodate Hardik by dropping Vihari,
and add Hardik in middle order.Mayank
Vihari
Chet
Virat
Ajinkya
Rohit
Rishabh
Jaddu
Ashwin / Kuldeep
Shami
Jasprit
