Buttler, who skippered England to 2022 T20 World Cup glory, insisted he will make no rash decisions on his future and will consult with head coach Brendon McCullum and director of men's cricket Rob Key.
As Afghanistan proved their 2023 World Cup win over England in Delhi was no fluke, Buttler's side must now head to Karachi for a Group B dead rubber against South Africa on Saturday.
It also set a new benchmark for the highest score in this tournament's history, ensuring Ben Duckett's 165 in England's campaign-opening defeat by Australia lasted just four days, and powered Afghanistan from 37 for three to 325 for seven.
Afghanistan clobbering 113 in the final 10 overs - with Buttler having to juggle his bowlers because of a left knee injury to Mark Wood - proved instrumental, despite Joe Root's century of his own.
Jofra Archer took three wickets in the powerplay but Ibrahim Zadran set a new Afghanistan record for the highest individual ODI score, thumping 12 fours and six sixes in his fantastic 177 off 146 balls.
