I think it will be Trish, Henry and Yinrun in the final three. No one is going to nominate Yinrun, so we won't get to see whether the public in general find her endearing or irritating. And both Henry and Trish have good public support, so I would think that whoever they go up against would go.
And one of my major irritations . . . housemates, unless you have immunity, you are ALL "up for nomination" each week. Only those with the most nominations are "up for eviction".