How exactly is it open world? And how does it look like tomb raider? Because he was climbing rocks with an axe?
The way they panned out on that island certainly seemed to be hinting at such. I doubt one level is going to be an entire freakin island.
Anyone who thinks this doesn' t look a lot like the tomb raider reboot is lying to themselves. Thats not a bad thing, but it does, I'm sorry.