I currently live in South Korea and am hoping to purchase a Nexus 7 soon. I am worried, however, that I may encounter problems when going back home/setting up the nexus itself.

Will I Google play remain in Korean when I head back to the UK? Will I be given a Korean version of jellybean and additional features? (Eg. I notice you get a free movie with each purchase. Will this be in Korean?)

Basically, what problems will I encounter (if any)?