The general consensus about the existance of the Falmer in TR is that they are extinct and will stay extinct. TR will not welcome "survivor" Falmer in the projects mods so please do not create quests/NPC's or any other lore to conflict with this in your mods.
The lore is too imprecise to make a clear judgement on their current state of existance. That the Falmer are extinct or are indeed Rielklings has yet to be confirmed by Bethesda. Until then TR will leave them as an extinct species.
Only under the extreme circumstance that Bethesda changes the lore on the Falmer will TR review this policy.
[FAQ] Stance on the Falmer
Moderators: Haplo, Lead Developers