1up has a piece looking at the impact that commercial support of WoW Arena teams might have on the game. There are already two teams backed with corporate money, both pulled from prominent PvP guilds in the Bloodlust battlegroup.
“It’s a challenge to pick teams to sponsor in WoW’s PvP: ‘The same team that may be ranked #2 or #3 in one Battlegroup may be ranked #1 in another,” said Stephen Schoder of Check Six. “this makes the proposition of scouting out the right team more difficult than most other competitive eSports. The arena system in World of Warcraft is much more complicated than the simplistic FPS and RTS games in terms of being able to immediately pick up on what is going on.’”