The Daily Telegraph has reported that the sacked former Wallaby was spotted in Liverpool and will likely be in attendance when the Silver Ferns take on Australia on Thursday night.
Israel's contract with RA was terminated following a code of conduct hearing instigated after he shared an image on Instagram that said "hell awaits" homosexuals and other "sinners".
In an interview with Sky News last month, Israel said the fallout had been "extremely hard" on Maria, who is a high-profile sportswoman in New Zealand.
"She has been dragged into this situation unexpectedly and it's been very frustrating for her," he said.
"I'm very lucky she is a strong woman, she is the same as me, convicted by her faith. She is continuing to march on and stay strong."
Israel controversially launched a GoFundMe page to raise money for his legal battle last month, using Maria's name and image as part of his plea, and posted about it on Instagram. The GoFundMe page has since been taken down.
Maria later shared the post on her Instagram account, in what was her first public acknowledgement of his situation.
Unbeaten through their first four games of the tournament, the Silver Ferns and Diamonds have already qualified for the semifinals regardless of the outcome of their clash on Thursday.