Sorry for another late response!

Currently the dev. team are hard at work on other tasks that have a higher priority, so unfortunately, they won't be able to include the use of auto-translate in the party search feature in the current version.

In version 2.0, the old party search feature ("Party" in the main menu) will be removed and some of its features replaced with the content finder. We would like for players to use the content finder and player search feature ("Search" in the main menu) for parties in 2.0. We'll be sure to keep the auto-translate feature in mind.