The All Blacks ended the competition on Saturday with a narrow 31-29 loss to South Africa on the Gold Coast, the loss seeing New Zealand cede world number one in rugby to the Springboks.
“Did we learn anything that will be very useful for us for 2023?” I think so, ”said Foster, whose team won the Rugby Championship title last weekend.
“We had a great time together, we learned to deal with the ups and downs of different schedules, different travel routines that we would normally have.
“We had to adapt and adjust and this is often the case during the World Cups.
“We have an eye on that, but it’s only one eye and what I love about the international game is that you can’t really look too far ahead than what happens next week.
“We’re loving the moment we’re trying to take action to grow in our game and I think if you look at the last four to five months we’ve made some good strides. “
The All Blacks will take a short break in Australia as pandemic restrictions mean they cannot return to New Zealand before embarking on a four-game stint in the Northern Hemisphere.
New Zealand will travel to Washington to face the United States on October 23 before heading to Europe for test matches against Italy, Ireland and France.
“We are looking forward to our northern hemisphere tour and we are going to face different teams again that we haven’t played in a few years, their style,” said Foster.
There have been “great learning moments for us, but at the same time we want to go out there and win,” he said.
“One way to prepare for a World Cup is to build confidence by building your game and winning big games. This is where tonight will be gold for us. “