The main problem with anime mode is that there are a ton of broken cards as well as tons of overtly-situational cards. It's basically like the garbage you call the YGO anime - bad decks, low synergy, and a god-hand requirement to actually get something decent on the field. So I highly doubt an OFFICIAL, Forum-held anime mode tournament will ever be run. However, you can always take some of your DP (600) and buy a tourney item from the Main Shop. You could pool with other players looking for an anime tournament to come up with the 600.