As the landscape continues to shift for Google Plus, it's been recently confirmed that Google Plus and the Photos app will be going their separate ways, and splitting into two unique products. With the two of them no longer being a joint offering soon, some have wondered what might happen to the photos portion of Google Plus, and as Android Police points out in this latest APK teardown, it would appear that Google Drive is going to become the new place for photos to be backed up instead of Google Plus handling that task.
At current this should be considered just rumor and speculation, as nothing has been confirmed on Google's end, but the teardown reveals lines of code that suggest this is going to be the case, and we very well could see it happening in the next update to the Google Drive application. When and if that happens, it wouldn't be surprising if Google Drive for the web ended up with the same change. Also according to the teardown, the most likely name for the new photos application will be Google Photos, which may eventually be split from the Google + apk and be synced with Drive much like Google's office suite of apps are currently.
Also found in the teardown, is evidence that looks like Google Drive could soon be getting Chromecast support, which is something that users have been asking for for a long time. It makes sense to have it, as you can share and store large files full of photos, audio, and videos inside of Drive, and they can be viewed from within Drive so casting from Drive would make things easily viewable for others who you may want to share things with. The potential new functionality to stream Google Drive to Chromecast on the big screen could likely end up allowing for casting of audio and video files, although at this point still nothing has been confirmed by Google officially. There's no telling when these features will go live for the Google Drive app, if they even turn out to be what is being speculated.