The city is getting ready
Next year, Tokyo will be hosting its second summer Olympics, just like in Katsuhiro Otomo's movie, Akira. A prediction/coincidence that makes the geekiest people feels like they love sports. Even if this is a pretty cool thing for the manga fans, let's make it clear... the city won't be taken over by a teenage motorcycle gang, and a godlike child with super nuclear power won't destroy it. Then what's going to happen? Well, pretty much the same thing that happened to any other city which hosted the Olympics Games in the past.
They will build (they've already started) a lot of new hôtels and accommodations, and they will upgrade some of their transportation systems to make it more efficient. They will also use the technology to accommodate the non-japanese speaking tourist and much more. Here's a look at some of the upgrade the city is undergoing.