So apparently the ancient text in random places like the statue on Mount Seawatch and the underwater temple can be translated. Good luck everybody, lord knows I’ll need it too.
Don’t believe me? Here’s a rule mentioning it:
I think most people are aware of this but there isn’t enough content in-game to allow for effective translations yet. Some people tried during the open tests but, as far as I’m aware, were unsuccessful. The translations are a cool feature though and it builds on the already lore-rich story 
Guess we just have to hope that there’s 26 letters in the ancient text alphabet and then maybe it can be bruteforced, then. 
On the trello he did mention this for an idea, " Ancient Language Tome - An equippable item that allows you to read runes of the ancient language in the world in english. (No color variations)" This item will most likely be the translator for these tombs, but it would probably still require a long time to translate.
What underwater temple? Got a picture?
Thanks dude, really appreciate it