I just ran the numbers in my head and I think Jeremy can do it.
Six votes is all he needs.
Candice, Howard, Elissa all hate Aaryn. He can play upon that.
McCrae, Andy, Judd have to be concerned about all the boys leaving, he can play upon that.
Kaitlin has said that she is voting out Spencer as she can't vote for her friends but he can work on her changing her vote to Aaryn so he would only need five of the first six I mentioned.
One more thing:
Jeremy staying would make Helen's head explode as people wouldn't be doing what SHE wants and that would be hysterical. Helen's HOHitis is off the charts. So drunk on power!