I think game length might have increased on average by 10% or so, which I think is good for the game since people are now using science/pd/engineering lab earlier rather than just rushing for offworlds. I suspect this was intentional based on some comments Soren made in one video. Frankly I think they might not have increased game length enough to please the masses though. If you take a look over in the Steam forums, nearly every other post in the Offworld forum is complaining about "too much rush" or "buyouts too fast" or "not enough time". Granted some of those posts come from people who bought the game during some sale and may not have much RTS experience. But it is seems very likely to me that if Mohawk wants to find a wider audience for this game, it will probably mean pulling in people who favor economic games (which tend to be slower) rather than typical 20 minute click-fest title from Blizzard.
I proposed a system a while back that would increase offworld prices with a gentle exponential curve as the game goes on. This would eliminate that sensation of the game dragging on past day 9 or 10. Maybe something along those lines is still called for.