I would really love to see multi-site support for Xenforo. I don't mind paying more for it, but I really would appreciate a built in option to support multiple sites from the same settings, users, plugins, etc. with easy navigation between the domains. Similar to WordPress multisite. There is a multi-site addon, but it is difficult to configure, and and is not compatible with most add-ons. I would like to be able to build a network of forums (for gaming).