I was a bit surprised to see DW3 speculation here, but yeah, it's something that needs to be said. I'll go a bit farther and voice the grumbling that has come from a not-insignificant number of expedition participants as well, aimed at FD: there was barely anything new to be discovered. Looking back on it now that the expedition's mostly over, it's true: the only new finds were the Aster trees and pods. Whatever else has been discovered has been there already, and not added with the Chapter Four exploration update.
On one hand, I'm grateful that the developers have stepped in and gave so much in-game support to the expedition. On the other, I'm disappointed that they got the hopes of many people up, and then let us down.
That the expedition was a success despite this is a testament to all the work that the organisers and the players in general have put into it. Once again, congratulations!
All this should serve as a good indicator to Frontier that there is real demand and appetite for more exploration gameplay(!) and content, from plenty of players.
50 expeditions before DW2 already indicated said appetite.