Looking at matches to finish off the preliminary games it would seem if Ireland and Pakistan was a wash out for any reason then Ireland would make the quarter finals if my understanding is correct. The game is in Adelaide so probably unlikely but still could happen.
Mar 13 - Fri New Zealand vs Bangladesh, 37th Match, Pool A 12:00
Mar 13 - Fri Afghanistan vs England, 38th Match, Pool A 14:30
Mar 14 - Sat India vs Zimbabwe, 39th Match, Pool B 12:00
Mar 14 - Sat Australia vs Scotland, 40th Match, Pool A 14:30
Mar 15 - Sun West Indies vs United Arab Emirates, 41st Match, Pool B 09:00
Mar 15 - Sun Ireland vs Pakistan, 42nd Match, Pool B 14:30
Presently the quarter final match ups look like being the following if all goes as expected over the weekend.
Mar 18 - Wed South Africa vs Sri Lanka, 1st Quarter-Final 14:30 SCG
Mar 19 - Thu India vs Bangladesh, 2nd Quarter-Final 14:30 Melbourne
Mar 20 - Fri Australia vs Pakistan, 3rd Quarter-Final 14:30 Adelaide
Mar 21 - Sat New Zealand vs West Indies, 4th Quarter-Final 12:00 Wellington