A request from the community came up in Savant's Aielund Saga thread over here: https://forums.beamdog.com/discussion/67661/aielund-saga-enhanced-edition#latest
, to update his TLK to provide better in-game descriptions of spells and effects. The core issue is that Aielund uses arQon's EMS system, which is a complete re-write of the spell scripts to fix a lot of issues (like dispel calculations, etc).
The problem is that Aielund also uses CEP, which comes with a TLK. I think the CEP TLK would be mostly orthogonal to one supporting EMS, in terms of 2da coverage. So, it might be reasonable integration-wise, if we were to assign two TLKs to a module and tell the mod to use CEP's TLK for everything except spells.2da, feat.2da, and iprp_spells.2da references (for example). Even if there were come conflicts, it could reduce the maintenance work for updates.
As it stands right now, there is little incentive for Savant (or anyone) to undertake an EMS+CEP tlk integration effort as one would be committing to keeping up with two sets of moving targets.
If this idea found support, it might also be helpful for some folks playing with stuff like NWNPRC, or some racial systems.
So the basic idea, to summarize:
1) Assign mutliple TLKs to a module
2) Designate one default TLK from the list
3) Designate specific 2DA <-> TLK relationships to honor