There seems little doubt that he will captain the side in the ODI World Cup in India next year - New Zealand's next opportunity to end their wait for a major limited-overs trophy - but the T20 position may be a more vexing issue.
Like a number of teams involved in this tournament there is only a short turnaround before New Zealand are back in the field again with a T20I series against India starting on November 18. It would seem unlikely that any major decisions are taken that quickly.
"I certainly love playing in all the formats," Williamson said. "There's a lot of cricket, and so that needs to be managed a little bit. It's a changing landscape with players all around the world at the moment, and we've seen it in our camp as well. After these sorts of events you sort of sit down and give yourself a chance to reflect and sort of look at what's coming up."
Boult has a BBL deal with Melbourne Stars from mid-December followed by an ILT20 deal with MI Emirates meaning he won't be available for the tour of Pakistan.
However, he remains available for selection and could feature against India, but it was indicated when he made the decision that post this World Cup would be the starting point for the new relationship. He had another good tournament with eight wickets at 18.50 and an economy of 7.40 although his two wickets in the semi-final against Pakistan came too late to make a difference. It might have been a different story if Devon Conway had held a first-ball edge from Babar Azam.
Boult has previously stated his ambition to play the ODI World Cup next year and hopes to add to his 78 Tests.
Beyond the limited-overs visit by India this month, New Zealand's home season includes two Tests against England in February then a three-format tour by Sri Lanka in March and early April. As has been the case in previous seasons, the matches late in their summer will likely be missing those players with IPL deals.