"So it's a broken leg and hopefully we'll see him on our way through to the airport.
"If we don't we'll send our best wishes to him and we'll be back in Auckland to hopefully see him."
Beale initially suffered what Kiwis medical staff judged to be a hematoma after colliding heavily with Samoa wing Peter Mata'utia, but continued on before his leg gave way while he was in back play.
"He did a try-saving tackle on the goal line and he was limping (afterwards)," explained Kidwell.
"We checked him out and they said it was a hematoma on his lower leg and then he went to take off and broke his leg.
"It's unfortunate but our best wishes go out to Gerard and his partner, Roimata, and his kids."
Kidwell and his assistant coach Brian Smith will put their heads together today and consider who to bring in to the squad as a replacement.
"We thought we could bring somebody in but we just have to follow up on that process but two people that we've got in the squad, Dean Whare and Peta Hiku, are pretty sound replacements at centre.
"We have to follow that process first on what the rules are 100 per cent for the World Cup, but (it's) likely to be another centre if we can."
The team kept a lid of celebrations post-match to ensure there was no repeat of the misbehavior and controversy that followed in the wake of the Kiwis Anzac test loss in Canberra in May.
"We were very grounded. We stayed in and had a feed. A lot of guys went to bed early.
"It was a late game but it was good to see a lot of family at breakfast.
"That's one of the things with the Kiwis family, after a late game, a lot of the guys have got young kids, so we bring them in for breakfast along with mums and dads."
The Kiwis have no other injury concerns with the squad completing today's pool recovery session before catching a flight to Christchurch ahead of next Saturday's match against Scotland.
