We can't add watchers to our ticket in the new view.
We are not able to see the attachments easily in the new view.
We have an on/off boarding checklist setup in a Text Field (multi-line) and when it is crunched to the right hand side it makes it very inefficient to update.
You are wasting so much space by just having the comments in 3/4 of the screen and all the custom fields on the right hand side.
Please rethink this design.