My suggestion for future JAST projects would be to bring more Empress games to the west.
Judging by some staff comments it seems that JAST has a pretty decent relationship with Will/Empress after the English release of Starless last year. I hope this means JAST will take on some of their other titles as well.
Some examples below (warning, music).
Worth noting is that none of the examples are nowhere near as ambitious as Starless content-wise, which should theoretically make them a bit more manageable for a small studio, but what do I know
If there's an interest, what would you like to see localized?