Unofficially> It is on paper to be tested out to be coded possibly into the game; as for ETA I don't really know, but there was a huge discussion with admin about possibly adding Fatal 4 Matches, 4 way elimination matches, 2 on 1 handicap matches (only for federation obviously), a sort of MITB to be included in federations, ladder matches, table matches, and of course TLC matches. On top of added speciality matches for tag-teams and stable matches.
Remember this game is still just a baby since it has been out maybe close to a year now, and recently with the release of HWG there has been a lot of shifting of management here and there to provide a good environment in both games.