There's been a lot of talk about this around the internet and it seems it's an easily fixed problem. Fuji Australia Responds to light leaks on X-T1: Fujifilm X System / SLR Talk Forum: Digital Photography Review
I've heard there's another light leak poossibility around the focus assist light, can't remember where I saw that, probably on the same site.
Still debating my upgrade and currently swaying towards the X-E2 but like Candy says "I hate the big decisions that cause endless revisions in my mind"
Thanks to the Velvet Underground for that one