Just to clear things up for anyone interested... I hope it all makes sense ;)
West have an extra game in hand, as their match against Torrens Valley was postponed because of a scoreboard malfunction. I think this match will be played sometime this weekend.
West's last regular season matchup is against SA Church. One can pretty safely assume that the Bearcats would win these two which would put them on 54 points at the end of the season.
Southern is currently sitting on 49 points with one game to play. Provided they win this week, their highest possible points tally is 52. As long as West don't drop a game Southern will not make the finals.
Furthermore, if Woodville were to lose this week to North, West would leapfrog the Warriors into fifth position.
However, if West were to lose one of their remaning matches, Southern would advance as they have beaten West in their two encounters this season.
My prediction is that the final six will end up like this:
Sturt
South
North
Forestville
West
Woodville