It's not really on till somebody buys the show. Hard to say what it will be like till the buyer is announced. The CW would be very different from Starz. SyFy is the only place I could see a TNG toned series airing. Even TNT is going pretty dark now with Falling Skies, and they're one of the more broadcasty cable channels.
Did B7 ever air in America? The fact that there arent even any DVDs available might scare networks. it would be smart to release DVDs first and use them to assess interest.
Also, I hope by network, they really mean both broadcast and cable. I don't think even a huge name space opera like Star Trek or even Star Wars could survive on broadcast now.