What I think is that people will make their way slowly from the "regular" Factions gameplay to areas like FoW and the price should go up again. I guess now it's still too early for that. I only have 12 ectos atm, but I really don't want to see their price drop from 60k to maybe 20k.

For the rest...don't count on it!
ore atleast that they add a new area in Chapter3 where you need Ecto ore add ecto fore some new 15k armor that requires ecto but not nearly as much as the one in FoW
that at least will "slow down" if not stop the drop.