Wenger becomes the longest-serving Arsenal manager Thursday, celebrating 13 years in charge of the club.
“He seems happy in his job here, it is very fulfilling for him,” Hill-Wood said.
“I can see him doing it for another 10 years, but of course that is up to him. He is showing no signs of slowing down, he’s perfectly fit and he knows my feelings about him.
“I don’t want him to leave, but he is very much his own man.
“I don’t think any amount of sweet talking from me will make any difference. He has a nice job here. He is well paid, no interference, he is allowed to get on with his job.”