This is something I think sometimes, but I know Bruce Timm has said in a few interviews, that Hal will return to Earth at some point or points in the season, so I assume it'll happen. But I don't mind the space focus so far, I think there are a lot of things that seem unconventional in this series, although I never followed GL in the comics. The team focus, its very much an ensemble team rather than straight focus on Hal, and its works, kinda like the space thing does.
So I think either way I'm sure it'll be great, based on what's aired so far.
I want to believe that the dead are not lost to us, that they speak to us, as part of something greater than us, greater than any alien force. And if you and I are powerless now, I want to believe that if we listen to it speak, it can give us the power to save ourselves.