As far as I am aware, there are only three full-time staff based in Copenhagen (Trusty, Fancy and ???) - the rest are pulled in as and when. CFG are not at a liberty to plough money directly into the hiring of developers and, whilst $500,000 is quite a lot of money for a small studio, it is literal peanuts to other companies who have staff working in the multiples of ten. I'm certain that they could invest that money into another developer or two but then they're burning through the funds at a rate that was not accounted for - that's when the game goes bust and then there's no 'significant new content'. I trust that CFG have fully accounted for their funds and time with regards to pushing along into each update phase. Throwing more men at development does not necessarily improve output, although it
will certainly negatively affect the bank account.
As a sidenote, and an example that more money and more developers do not necessarily fully-realise a complete game. I have been in the
Kingdom Come: Deliverance project since the Kickstarter in January 2014. The game is still in beta and will not be launched as a full version until next year - Warhorse Studios have 50+ folk working for them full time
and earned slightly over one million pounds at the time of the Kickstarter ending. Why isn't their game already out mate? Why aren't you playing it? Get to it!