[Edi]

As the author of the Faerun map, I can tell you beyond any doubt that there is, as of yet, no updated Faerun map available. I will make one available for the 283 province version as soon as I get the database of units, weapons, armor, poptypes, magic sites and other stuff finished enough that I can release it (even if the release version is not quite the final version).

The reason for the scarcity of Dom3 documentation at the moment is that frankly, I produced most of the important documentation for Dom2 (units, weapons, armor) that was used both for modding and mapmaking, and I've not had a chance to complete the Dom3 version yet.

On the easily available Faerun maps on Arryn's site, I might also make versions of the 424 and 324 province Faeruns available, but 324 at least is very doubtful, because it is by far the worst of those three in terms of how it plays.
If anyone can point me to an online map of Kara-Tur and the Hordelands, preferably versions that are compatible with the existing Faerun, then we will see a full Toril map.

Edi