I wouldn't be suprise if they actually decide to close the chat room for good seeing how some people actually have bad experience in the chat room. TBH I didn't really how some random wierd people were able to message other people online without the user permission.
If the chat room does returns I hope they add some new features or improvement in the chat room similar like Facebook. Where you can only allowed to make your chat private or public. Your friends are the one who can chat with u that listed in ur contact or maybe people can request to chat with u and have the option to click yes or no.
I think this would have been better option to either make some changes in the chatroom