https://www.gamespot.com/articles/e3-2018-shadow-of-the-tomb-raiders-immersion-mode-/1100-6459817/

New information on Shadow of the Tomb Raider's Immersion mode has come to light. When playing in this mode, you can hear NPC conversations in the characters' native language. Crystal Dynamics' Rich Briggs stopped by the GameStop stage at E3 and told us about how this will work and why it's possible for Lara to understand different languages.

"Lara is an accomplished scholar," Briggs said. "She can get into a culture and figure out what’s going on enough to understand. All the side side conversations will still be in Yucatan Maya or Spanish but the main stuff will be in English," he said.