N'Zogbia has never hidden his desire to play at a higher level and Whelan is resigned to losing the 25-year-old this summer.
The likes of Liverpool, Newcastle and Sunderland have all been linked with a move for the winger and Whelan expects N'Zogbia's future to be resolved in the next fortnight.
"There is quite a lot of interest in Zoggy. He has said to me I've enjoyed my time at Wigan but I want to move on to other things," Whelan told the Wigan Evening Post.
"He's very proud now of playing for France again and he feels a bigger club would be better for him for selection for France, for which we have to agree and I've said we will not stand in his way.
"There have been plenty of enquiries but the season is still a bit away yet and the transfer market is only just beginning to kick in. They're all on holiday but we'll come together in a fortnight and sort it.
"If a player comes in saying he's unhappy playing for Wigan Athletic, I want to move - I'm not going to say you can't move. I'm going to say okay, we'll put you on the list, try and find you a club, as long as we get the right fee, we're going to let you go.
"If people want to employ someone, they should have the right to do that."