I think that KSP will live till 0.30 or so,when most of the planned things will be implemented..It just becomes unprofitable for Squad.Considering we have 4 big devs in the team (not counting artists)(Mu,Dan,C7,HarvesteR),and I think that each of them could have pay around 650EURO per month,which is 2600EURO for all,which means around 150 people need to buy KSP per month to just pay all theese big devs.