If Pacific Rim 2 gets the green light, Guillermo del Toro will hopefully deliver an amazing product full of even more dramatic alien-sea-monster killings and awesome action sequences. It appears also, if del Toro gets his way, Maisie Williams (a.k.a. Arya Stark), will be involved as a member of the cast!
Okay, a couple things here. Firstly, don't look over the fact that it says "if" PR2 happens. We haven't yet been able to confirm that the sequel is even going down (it should, though). Second of all, this isn't confirmation that Williams is onboard even if it does happen. It's just a story about the two bonding and the amazing fact that this could happen.
The two are drift compatible. That is all you really need to know. Please get Arya Stark a needle sword-toting Jaeger and let her do some damage!