IGNIS will be in your Ardor wallet IF you have NXT coins in your Nxt wallet or in wallet.mynxt.info by the time the snapshot is taken. You seem to have transferred NXT coins to wallet.mynxt.info? Wait for September and you'll have IGNIS.
Are you totally crossing out the possibility of exchanges crediting IGNIS to their users with NXT in their accounts? I mean, if I am not mistaken, that was what happened for Ardor snapshot.