It's a shame that the 3rd expansion will be the one that allows the player to continue past the main story line, it would have been nice for that to be in the first expansion.
Personaly though im waiting for an expansion or a decent mod developer to make a more in depth crafting system. Personaly what i would like to see is the ability to basic items like scrap metal, conductors etc.. and turn them into more complex items like metal plating, or eletronic modules.
These items can then be crafter together into armour/weapons, OR, enchanced further and then used ontop current armour to make it more advanced. For instance, turning scrap metal into armour plating and making a combat armour suit, then using more scrap metal and a sensor module to make metal plating +1 for lack of a better name, which can then be combined with the combat armour suit to make armour suit +1.
So much can be done with the crafting system imo, yet it seems like all mods ive seen so far compleatly ignore it.