Why would he return to NZ? He left here aged 10, is married with kids living in London. He can find better gigs there and not have to upheave his life.
I'd also add he has 4 years left on a stupidily rich contract. No one above soil would ever walk away from that
Yeah kinda crazy Hammers agreed to sign him up to 2023 back in 2017, ie 6 yr deal.
Even if that deal was obviously signed before his bad knee injury, was a risk given he'll be age 35 in 2023, and EPL is a brutal comp.
Maybe they can loan him out to a MLS type team (less games, less wear & tear), and part share his salary or something. Beckham needs to create a team in Miami for 2020! Or a week on week off proposition for a Championship side. That's if his body never comes fully right.