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On November 29th, 2010, Sankando (former Sparkplay Media Partner who was supposed to bring Earth Eternal to an international market) announced development efforts/transfers related to Earth Eternal. The translation from Japanese to English is very rough, however, so it's difficult to read. Here's the translated link:
The announcement appears to state that TurnOut Ventures, a subsidiary of Turner Entertainment Holdings Asia Pacific Limited (Time Warner) and OutBlaze Limited will develop the game. This ties directly to the previous information: