Here are the updated possibilities and it's no longer in our own hands:
Lowest we can realistically finish is 5th as West Ham are 16 goals worse off than us.
Rags win both and we're 5th unless we win at Swansea and Villa win at t'Emirates in which case we'll be 4th and Arse 5th.
Rags get 4 points - we're 4th if we win at Swansea, and third if we win at Swansea and Villa win at t'Emirates. Rags would be 5th. However we're 5th if we fail to win at Swansea.
Rags get three points - we're 4th if we win at Swansea, and third if we win at Swansea and Villa win at t'Emirates. Rags would be 5th. A draw at Swansea should be sufficient but we'll be biting our fingernails down to the elbows every time Swansea attack.
Rags get fewer than three points - we're third or fourth.