I don't think Austin will go. I think Janice and Jenna will.
Austin beat all the other three in a vote to save only a few days ago, so he'll need two of them to overtake him to be in the bottom two. I think whoever liked Austin enough to vote for him before won't have been put off by the last couple of days enough for him to lose loads of votes, and I don't think the other three have done anything different/better to what they were doing before to pick up more votes to put them ahead of Austin.
Obviously, this is just my gut talking. And having said all of that, Austin will probably be bottom now

(I hope not!)