Since Oculus themselves admitted that GO is most Successful headset with number of user actively using, its great idea to make some very minor changes to Oculus Go which can drastically improve experience.
1) Improved Battery for longer runtime
2) Support to attach powerbank where attaching power bank cut off internal battery,thus avoid chances of overheating
3) Bigger Size of memory 128 gb and 256 gb versions
4) Pen-drive support for media
5) If possible include Samsung Anti SDE displays (Since i strongly believe those displays may look even wonderful with Go optics)
I know last one seem implausible for now but that what life is all about .. things are only challenge as long as someone don't dare try them.
(Here someone is FB Oculus B2B approach to Samsung.)