Here is what will happen upon release:
1. BGS players find the board empty, and re-adjust to the new reality, and return to exploration data, bounty hunting, possibly even trade. BGS play without board flipping in most systems is impossible. If I have the time to do 20-30 missions, I am not going to instead do 2, then return to port, and do another 2 in the same time it took to flip and do 20 before. I'll go make 2 hours of explo jumps instead. If the faction owns no assets, it may become more effective to push a little to get a faction into conflict, then push it up through combat bonds. Point being: don't give missions for my faction? Then no missions will be run for the BGS, and other approaches would be found. Too bad about that influence option in rewards, though...
2. Passenger mission running will practically die out completely, or become Dolphin taxis, as it would take several hours to find enough passengers to fill a Beluga, Orca or Anaconda passenger ship
3. Rank grinders, engineer material grinders, etc. many who may not yet have a forum account will sign up and cause the biggest storm on the forum since... eh.. the Gnosis event.
4. Reduced daily active users, as frustrated CMDRs decide to go play something else.