Board Thread:General Discussion/@comment-86.142.253.158-20140811235307/@comment-2121396-20140812020247

Short answer: no. Long answer:

The VOCALOID engine is so radically different from V2 and V3 that any porting over would result in disastrous results at best. Sweet Ann has been the only example of porting from V1 to V2, and she was marketed as a V2 only. On top of that, we have no data to suggest that these were old recordings from V1 or new ones for V2. V1 is just way too different for accurate porting to be done. It can be done, but it sounds SO BAD.