Indeed, the future of this series is looking great. I just watched episode 4... some really awesome space fighting in this episode. Rey is awesome, complete Newtype rip off, but that's why he is so awesome. ^^;; I'm really starting to like his white Zaku a lot. Yup... guess that's it for now.
As for Shin, it's typical for a character like that to be about himself, besides he did loose his family in one fell swoop...that will cause emotional scars for any character.
As for this episode, I thought I would get to see Savior if not for a little bit, but I guess it's too soon.
Since it's still only the beginning of the series, they might make it intresting by making it so the piolits destroy most of the "giant object" and let a bit crash on Earth.