Well, no. It was primarily a white British area up until the war, with a fairly substantial Jewish population (more over towards Whitechapel though) and now has the majority of Bengali's in London here.
The kids speaking multiple languages will be speaking Bengali at home and English day-to-day at school, that's all.
The borough also contains Canary Wharf, so you get quite a lot people moving here for jobs in the City. There's a bunch of redevelopment and new flats going up that are bonkers expensive, so that will bring a different kind of person here and change the make-up of the place again. Plus it's right between Shoreditch and Hackney, so it's chock-full of hipsters.