After the Gunners claimed their first trophy in nine years by winning the FA Cup on May 17, Wenger reiterated that he will stay at the club.
Widespread reports have recently claimed that the Frenchman will sign a three-year deal worth £8m per season, but official confirmation is yet to be made.
When asked by Sky Sports News if that is a worrying sign, Wilshere said: "I don't think it is. I'm sure the club have got it in hand. I know the boss loves the club and he's given everything to the club, so I'm sure it will be resolved soon."
It has been reported that Wenger will have around £100m to spend on players this summer.