Could very well be an upcoming update, lets just hope you didn’t spoil it for everyone. However I’m not sure why they would put it on the wiki before it was released. I haven’t viewed the accessory page in ages so I’m not sure how new this is.
I was referring to the wiki page,
I highly doubt roblox will enforce a change like this out of random. I’m sure that if this is something to be worried about then it will be posted in the announcements.
However assuming that they do make an update like this out of the blue I’m sure you will have deprecated methods.
The only people who know about these would be roblox staff. My guess is that they planned to originally have eye and ear accessory types but reversed them last minute. The enums are probably deprecated and have no accessory that would reference them.
If it does happen, it won’t happen without prior warning. Roblox is generally pretty considerate of developers when it comes to things that may break their games.