Yes, so I can randomly.. heh no.
Actually at one time it served a purpose, in that it was to prevent people from using tons of scripts and crap in certain well used forums.
Now I'm not sure what the reason is. I could change it if enough folks wanted to. I think for most purposes, UBB is faster to type anyway.
As to being announced at E3, there's about another WEEK until the convention. And it's three days long, so we'd still have to wait a bit.
Last year LEC made some announcements at the TAIL END of the show, that they didn't tell us when we were there, so who knows.