Wenger says the Arsenal star's rehabilitation from a broken foot will ensure he is in peak condition for England this summer.
"Jack started to jog again this week and I would say two to three weeks until he returns to action," said Wenger. "I spoke with Roy Hodgson, I told him Wilshere will be available for England. He will be just polished for England.
"I think he will pick him. I didn't feel any doubt on that front. Jack can prove himself to be world class at the World Cup. He can be the positive surprise.
"England has a very difficult group but if you come out of a group like that your belief is really strong. They have to deal really well with the situation as they have Italy and Uruguay in the group and they have to get out of there."
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