Well, it's out... spoiler-time.
1) new costume... eh. It's been worse (red twinkies, muscle shirt, or the blue/gold mess he got told he had to stop wearing)... but not NEARLY as good as his previous outfit, or his original, which are still my two favorites.
2) new Nova? He's using human colloquialisms, which is either bad writing or he's from Earth. Could be Rich, could be his brother, or someone else? No way to tell, because...
3) It's just very short on explanation. Tells us about the impending disaster and not much more. No idea if it's Rich, or if it is, how he got back, or why he's in a different costume AGAIN, or anything.
All in all? Yay it's Nova back, I guess, but ugh.