Option to re-upload a deleted photo - from the Apps
I would suggest to give the option to upload the deleted photo also from the App. You can always make a mistake and delete one photo. It is good to explain that this photo was already uploaded and deleted before, but I think it would be good to give permission to re-upload from the App.
This is very hard needed, when you see light / color isn't good, you delete the file and renew export in Lightroom, it uploads but never comes in the libary while 'deleted'? Sharing from Lightroom Mobile doesn't work because it gets the wrong date/time stamp and you can only change the date in Irista, not correct the time setting.