Watching it again and it looks like there will be a fairly large number of possible combinations for ships. Looks like you will be able to sort of bit piece it together or add-on and such.
Looking at comments around I think people are concerned about the 1k plants comment. My guess is it will be very similar to what we know and that means the vast majority of them are going to be resource planets with only minor sentient life present. Think a large planet with a single tiny depot cause that is all that is needed for mining.
I'm hoping we get 10-15 fairly inhabited worlds with multiple cities/settlements on each, then tons of other planets for resources and hell a place to build a home away from spaceship home.
All in all I'm hopeful but not about to pre-order it right now or anything. That said I might pre-order if there are extras or some crap, but if I do it will be a day or two before launch. I'm still hoping that some game can satisfy what I want, think ME, but more. More open worlds, more NPC's, more crew interactions, more control over your destiny. And so far if they can pull this off it might just be close.
Anyways I still think Fallout in Space will be fun.