I've been playing the game just for a few hours, and I find it absolutely fascinating. One of the best games of the last few years. Congratulations!
I've played a campaign, and discovered that it just lasts for 7 weeks. I would like to request a longer campaign mode (e.g. 20 weeks), where you can decide between a short-term, cheaper option, or long-term, more expensive options that will pay off much better in the long run.
Right now, as an example, I can hire a specialist for one week and pay 100k, or hire him forever and pay 500k.
Reality is that I will be able to use him only 7 times - and not all times he will be useful.
There is very little incentive to hire these people forever. Instead, if you have a campaign that lasts, say, 15 turns, hiring him for 500k (or perhaps 750k) would make it much more sense. Also, certain buildings, e.g. Offworld market, don't make much sense in a 7 day game.
It would be interesting to be able to make for slightly longer games (e.g. 8 or 9 days).