If Pakistan wins both their remaining matches, they are through irrespective of other results and NRR.
For Australia to go through, they have to win both matches. Hope Bangladesh beat Pakistan and hope that Pakistan then beat WI. Then it will go on net run rate.
For West Indies to go through, they will definitely be through if they defeat Pakistan irrespective of other results. However West Indies can still go through on net run rate if they lose to Pakistan, but Pakistan lose to Bangladesh.
Does an edition of IPL make more money than a WT20?
How many Indian TV viewers does it take to match the marketability of an English or Australian viewer-consumer?