Hello. I'm one of kickstarter backers. I haven't still played demo, as I'm a linux user, so forgive me for my possible mistakes.
I want to give an idea for the pledge: naming of support personnel, like scientists and engineers. Maybe they can be shown in research/project completed screen (when research/project finished), something like a message "The new research completed under the direction of Name_Name... It's about...) . It sure needs some changes in game code, but probably not so much.
I personally think that kickstarter success is coming directly from involvement of common people in the game development and the feeling of that involvement and the signs of that involvement and showing of that involvement. So the tiers must be set with having that in mind. That's why personal portraits were so quickly bought - they are extremely personal signs of the involvement in the gamedev and they are shown to anyone. Names are also good, but they come bundled with physical signs, which are sometimes not needed and expensive and shown only to limited scope of people. So lowering price of current names options is also a good idea, but it can hurt some current pledgers with 100$ pledges..