Based on translation from Patch Notes reading:

"YoshiP is hyper aware of your feedback on the absence of ears for Hrothgar but due to its special specifications of the race (the head structure, specifically). And if they want to ensure ears to appear again when using existing hairstyles they might have to rethink and restructure the specification, and the price you'll have is that the implementation of different Hrothgar will be a lot slower and limited in numbers, instead of adding a high amount of them patch by patch."
"YoshiP has been saying that they get a LOT of voices that they want the ears to retain, that's possible but it'll take time to address this (reviewing the specifications and what not), it's not that they won't nor can't, but the difficulty will require them to look through things before proceeding."