There is a lot of apps and games being optimized to support 512 MB RAM since the success of Nokia Lumia 52x. I can see why they went with 512 MB RAM again at this time. Perhaps, that also...
Who works these days? There's Instagram now. ;-)
Few ever mention the lossless zoom in video recording as well.
Xbox game controller support has already been announced as an upcoming update.
I preferred the original approach as well.