My gut feeling is that It is going to be a Pak vs India quarter final
Now lets do some calculation
Pakistan is currently on top of the table in group a with NRR of 1.7 and won 3 0ut of 3 and they have 3 games left two with major teams and one with minow. now as Pakistan won from Canda with a margin of 48 runs that drop the NRR of Pakistan considerably from 2.6 to 1.7
Now if AUS looses to SL tomorrow and then Aus wins from Pakistan than all these 3 teams will have equal points then it will come to NRR as in NRR Pakistan is currently at second position so it will put Pakistan on 2nd in table
On the other hand India has 4 matches left if they win it from WI ,Ireland and Netherland and loose it from SA then they will have 9 points and if WI wins it from Ireland,netherland and Eng they will have 10 points which will place them at number 2 so india will be at number 3
This is just a rough estimation because cricket is a funny game and you never know what is going to happen ,it is just based on perception