From my recent name change, I lost nothing at all, both on org and on net. However, I have heard that you could potentially lose your island on net..? Im not entirely sure if that is true or not.. It didnt happen to me, but I thought it would be worth just throwing that out there for you to consider.
You will not lose your island on either net or org. You will be locked out of chest, and have lockette, or shops.
Lockettes and things protected by your old name wont give you access to it anymore. You will be unauthorized.
If you have lockettes on your chest prior to changing your name, the chests will still be locked, only giving access to your old name. Just make sure to break any lockettes before you change your name
Welp, looks like your question has been thoroughly answered, so I'll go ahead and close this up. If you have more questions, don't hesitate to ask
