Not totally sure Eve will last another eight years. Did you refer to Deming LEAN priciples when you decided to make this change
The change in the agent's missions is extremely boring.
The previous mehtod of mixing the missions was actually a great way to do this game.
Without the mix there is now no surprise in which type of mission you will draw. Security will be entirely combat, distribution will be entirely courier, and mining will be eintirely mining.
Mining and distribution agents will cease to exist under this new change that you have implemented unless you move some agents of each type into stations tha tnow are single purposed.