There has been some good interest in virtual domains, and I think Im willing to dive into the topic. But it will require a fair amount of work, so the first step is planning. Any parties interested in contributing some development time, please browse on over to http://wiki.igniterealtime.org/display/WILDFIRE/Virtual+Domains and contribute to the planning phase. If no one else contributes, it will be my ideas alone that get implemented (which may or may not be all that bad).
To the users: No, virtual domain support isnt going to make it into the next version. This will be a long term project unless some developer(s) can devote a good chunk of time to it.