The title says it all?.
Those two are for sure very complex features. So the question is for long term... and aimed to the playerbase opinion.
To be able to save all the game replays and share it in a whole battle replay allowing to move the camera into the full battle, was a good feature that maybe had no sense in the past due to the constrains on file size and network bandwith of the past years... but for the standars of 2017 and comming years that's not true anymore. There is no problem with very big file storage nor with network bandwidth availability world wide.