Huh?
Of course it will have iOS 11 on it. The new iPhones don't support anything lower than iOS 11 and every year they ship with the newest iOS.
Well excuse the eff out of me... I haven't bought a new phone in 2 years and my iPad Pro that arrived yesterday DID have iOS 10 on it.
Thanks for the info... Huh? could have been left out though. LOL