Pokemon Battle Revolution was first announced by Nintendo president Satoru Iwata at a Nintendo marketing event in Japan on June 2006 and it was released in 2007 after Pokemon Diamond and Pearl. Below you can see the original trailer that contains a lot of beta stuff: it seems that it still used the same engine from Pokemon XD: Gale of Darkness (GameCube) and there are some unused / early 3d models.
As you can see in the middle the HUD is the same from Pokemon XD: Gale of Darkness and battles are from Pokemon Red and Green.. maybe they even planned a connection with the gameboy advance games. Rumors say that Pokemon Battle Revolution originaly was started in 2006 after Gale of Darkness was finished, but it was later postponed to be a title for the new console.
Post by Arshes91