The All Blacks management team announced today 41 players who will be attend the get-together.
Ioane was left out of All Blacks' 51-man squad northern hemisphere tour at the end of last year.
New Zealand Rugby's head of high performance Mike Anthony said the timing of the foundation day is important, given the players' busy rugby schedule in 2019.
"Given the All Blacks have an incredibly short lead-in time to the upcoming international season, culminating in the Rugby World Cup, and with there being no camps during the Super Rugby season," said Anthony.