Probably, the forthcoming update will bring a new Portrait Mode to iPhone 7 Plus devices later in the year since the update is currently part of the iOS 10 beta release, which suggests it should be getting an official release soon.
Apple iPhone 7 gets iOS 10.0.3 update, more bugs Fixed
iPhone 7 users now have a reason to smile with the launch of the latest version of iOS 10.0.3 for iPhone 7 and 7 Plus devices. This new Apple iOS update, is released to fix a bug that apparently caused some users to "temporarily lose cellular connectivity."
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This is the second iOS 10 update that has addressed issues with cellular connectivity. Previously, during the initial iOS 10 rollout, T-Mobile reported a bug that was causing some iPhone 6 and iPhone SE devices to lost signal. Apple later addressed that bug in a subsequent update.
The latest iOS update includes other bug fixes as well, though Apple hasn't shed more light on them yet. However, all that could be said for now is that the iOS 10.0.3 update includes the same security content as the iOS 10.0.1 update, according to Apple's website.
Despite these issues, though, iOS 10 is seeing wide adoption just a few weeks after its formal release. The update is already installed on more than half of iOS devices, according to the latest numbers from Cupertino, and third-party estimates suggest adoption has been growing rapidly as well.
Although this is an important update, iPhone 7 owners may still need to wait a little longer for an iOS update that will bring new features to their devices.