The bookies odds are generally a fair reflection of the voting, they have Matt as the strong favourite at 6/4.
Scott is second favourite at 9/4, Kara is best priced at 5-1.
Ann is available at 8-1, then quite a gap to Pamela at 18/1.
Gavin can still be bet at 33/1 in a few places, with Patsy at 80/1 and Felicity at 100/1.
So, if that's a reasonable indication of the voting, we could see at least four more departures before Ann leaves..and there is even a possibilty that she could outlast Kara ! It all depends on the switch voters, will they come out in force with "anti-Ann" votes after their favourite has left the show ?
I don't think there is any danger for Matt and Scott, they are both extremely popular with the usual SCD fans, who still make up the majority of the voters.