Tim Jenks, PR Officer at Haloplayers, has this to say to y'all:

After noticing a large increase in European based Halo squads, we're just reminding people of the European Halo League - a league ready to go as soon as the game is here. - We currently have a large number of European squads already signed up for places in the league, and hope to see a few more interested. You can sign-up for a provisional place in the EHL at www.haloplayers.net/ehl/ and for the other leagues by mailing us at halo@haloplayers.com. We also hope to get everyone in the community involved in these leagues, and many other ladders, cups, and international tournaments once Halo is finally here.