Nahhh, will wait for official news. If that is Sega why is Nintendo giving so much attention to this game as they did on E3 and TGS?
In other way it could be good, record yourselfs that thanks to sega Gamecube had a little of online connection with Phantasy Star 1&2 anc C.A.R.D Revolution - the only online games in the Gamecube. So the Conduit here as better chance of better online than if it was published by Nintendo. Bet Sega will put their servers on the service. I guess...
EDIT: There's another game called Homeland for Gamecube with online connection too, but it was a limited edition just sold in the internet and only released in Japan so... It kinda sucked!