A squadron will be created for this purpose and cmdrs who choose to can join and use squadron bookmarks to share the systems where Braintrees stop appearing.
Etc.
----------------------------------
The more in-game it's made, the more the question of reward will come up from the community, but my inclination would be not to offer any credit based reward (other than what people would earn from UC and the Codex for the scans), and to do it more as a general exploration and discovery activity. People who are interested will join in, and people who only do things for credits won't, which I'd be fine with personally.
What's people's initial thoughts?
Well put me down for a part in this endevour, what part I will play I don't yet know, however rewards will probably be the last thing on any explorers mind with the new mechanic, you get the same reward for the initial honk as you do now, you get extra for the FSS scan, on top of that you get bonuses for scanning planets and moons with probes, and yet another bonus for flying down and scanning objects on the surface with your composition scanner! To be honest if the only thing you are interested in is money then exploration is probably the best time for money option for the casual player.
But as we all know, some of us don't really care that much at all about money, its the exploration that counts.