I don't think there are plans to phase out the console--it makes it really easy to copy/paste a long series of commands that would be hell to do by hand through the inferface. The console was actually upgraded to use the site scheme; I don't think that would have happened if the plan was just to phase it out. I think the plan was to make sure that options that people needed were accessible through the interface, so they wouldn't have to use the console.
Re: Admin console