It seems that the upcoming Emerald has a special place called "Battle Island". Upon closer examination of the pictures (provided via a link on the regular Pokemasters.net site), it looks like there are several types of battle arenas, including a special one where it seems as if you have to choose a Pokemon (or multiple Pokemon) from the ones shown to you. It is unclear as to whether or not the Pokemon are yours or are a pre-designated team, but it should certainly provide some twists to the battles. Also, one of the arenas appears to be called the "Battle Frontier", due to the writing on a wall that is, oddly enough, in plain English. In addition, there appears to be a tournament mode, which should be interesting.

It looks like the new island resembles an amusement park in some way. Perhaps this is an area that you can only visit after winning the League, or something along those lines. Whatever the case, it's clear that Emerald will have many surprises in store for us.

Did anyone notice anything else about Battle Island?