It really depends what they have planned for addons, it could just be a visual UI thing where players can reskin the UI to their taste.

I am hoping for much more in depth addons personally, I do agree that it could be a potential issue with bots and whatnot, but tbh there are 1000's of people who already use them.

It would be nice to get some feedback from Yoshi on just how much control he plans for us to have with addons.