Anyone know when the large weapon set will be introduced into the Brick Archtype or powerset?  I read about it with other plans, all of which have been implemented already, but have not seen or heard anything since on the Large Weapon powerset......that would be awesome for my Mighty Demon.

According CO's calendar at the end of March the Devastator archetype will be available, since it uses the heavy weapon framework, I am guessing that it would be available to gold players the same day.

I take it they will have options for flaming sword or axe or flaming anything?

New information said that it will released during April.

There is still no information about the specific powers but probably couple weeks before release they will put it on the test server.

You can get sort kind of effect of flames on weapon powers through power replacers.