What is Ty the Tasmanian tiger 4 called

Late but... Ty the Tasmanian Tiger 4: BUNYIP was cancelled in 2006 or 7
Critics say it could be that because Ty 4 had a different game style, muck like a 3-D plane battle...
News of a new Ty game has been unknown a judging as it is the September of 2011...
Either they are taking their time with this or most likely the Tasmanian series has been cancelled....

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