As of next update, many subraces will be slightly adjusted; in some cases, the changes will be more major (Athasian Elf, Athasian Dwarf, Athasian Halfling will now have ECL and different statistics overall). In most cases though, the adjustments will be minor and may not even be noticeable.
Since we first implemented subraces (about 10 years ago), we've added new feats and NwNx support, which allow us to better represent these subraces as they would be in PnP.