Gunners boss Wenger had been unwilling to set a comeback date for the England midfielder, who has already been out for a year with ankle and knee problems.
But, speaking ahead of Arsenal's final match of its
Wilshere, who will reportedly resume light training next month, underwent a procedure on his knee in May, having missed the whole of last season with an ankle problem.
An October return would rule him out of England's opening two FIFA World Cup qualifiers against
Manchester City faces a possible reunion with former striker Mario Balotelli in Germany this northern summer.