I don't get why people are SO concerned about Subspace spoilers. To me, knowing the characters is a bigger deal than that (I know I'm probably just about the only one who feels that way).
I mean, I can't fault anyone, because I'm trying to avoid them too, but all the posts I see now are just "Who cares about character spoilers? BUT DON'T SHOW ME SSE OH NOEZ!" Why? I mean, I guess I wouldn't know, but I doubt the storyline is going to be deep enough to REALLY matter. Ultimately it's just transition sequences for all the characters to meet up with each other and take out the main bad guy. I'm sure there's going to be little to no real DEVELOPMENT of any kind, especially if there's no dialogue.
The main thing that makes it so cool is just SEEING it all happen. So avoiding pictures and videos is the main thing. If a spoiler comes in the form of text, it's not so bad. The worst that'll happen is you'll know WHO the final boss is or which characters partner up.
That said, I'm still avoiding any kind of spoiler I can.
But if I had the choice, I'd trade the amount of knowledge I have regarding the secret characters for an equal amount of knowledge regarding the SSE. The problem is, there's really no way of doing that since I'm sure all of the characters are IN the SSE.