Dont expect it to be the CB series engine because of the minimum Euro II compliance requirement of all local vehicles, unless they electronically fuel inject the vehicle and add other bits to it, which would essentially not be too beneficial for the current charade owners because quite many parts used on that engine would be different from the carby CB.
Daihatsu Mira L275/285 also comes by the name of Charade in many parts of the world and at some parts, it comes with a 1.0l engine, which is a Toyota 1kr-fe which could be the engine that might be used in the V2.