Square Enix's 2013 Tomb Raider showed us a Lara Croft we had never seen before. For decades, the only Lara we knew was an iconic action star -- confidently dual-wielding pistols while running, jumping, and gunning her way through any situation. The reboot aimed to show Lara's formative moments. She was vulnerable and scared for once, just trying to survive.
With Shadow of the Tomb Raider, Lara will become the Tomb Raider.
Square Enix emphasizes and re-emphasizes this point many times over the course of our in-person Shadow of the Tomb Raider presentation. This is the conclusion of a trilogy, but, more importantly, this is the end to Lara's arc of personal growth. She's more experienced and more skilled. She's going to have what lead developer Eidos Montreal calls "a defining moment." And hopefully all that means something beyond "She murders better."