Up front, I am dead set against player owned assets, but it seems the OP is not talking about player owned assets, he's talking about directing the BGS. And I feel there is good gameplay in his suggestion which would incorporate many professions.
Provided a PMF is at the edge of the bubble, in 'range' of a yet unexploited system. The target system needs to be fully mapped by a CMDR of the squadron. And the procedure takes a looooooong time to go through the various stages. I'm talking about months.
How I could see this working:
Lets say the new exploration mechanics are used to discover a rich roid field. It would mean there are extraction companies willing to invest in expanding there.
A PMF squadron funds the initial construction site, and will have to transport a lot of materials there. Once funded, the site is claimed and no other PMF is allowed to start construction.
Once the initial construction phase is complete, an outpost is built in the rich roid field. That outpost will be incorporated into the BGS. From here on, the PMF squadron cannot directly influence proceedings anymore, but has to work the BGS. In other words they will have to make it a successful, profitable site by doing missions and hauling ore. In doing this, they will raise the value of the site to the point where they could 'put it up for sale', with the maximum revenue being the amount of credits they put into it. (so no money making scheme, just making back your investment ... the true pay out will be realized later.
This stage in itself should take months.
Extraction companies will then show an interest in the site and buy it from the Squadron. In doing this, they favour the PMF they bought it from, but aren't completely controlled by it, this has to be done through the usual BGS mechanics. In the new system that seems to be making the closest system deliriously happy. But other MFs may butt in and have a go at swaying the system under their control, they just start at a severe disadvantage.
That might cause a couple of factions having a go at this new system, which in turn could mean that:
- The extraction company wants to increase capacity and upgrade the outpost to a station.
- Refinery companies might want to set up shop to have shorter distribution lines and first pickings.
It would be very cool to have a system develop itself because of the initiative of players. While there aren't any direct monetary rewards, there are territorial rewards. But I suspect this is way to complicated for the BGS as it is right now.