Board Thread:General Discussion/@comment-72.66.32.27-20141028214010/@comment-3076833-20141101041840

^ CUL is just as unpopular as Ryuto who only got upgraded for a special occasion. When it comes to Internet Co VOCALOIDS Gumi would be the obvious candidate to a V4 upgrade, and I would say Gackpo and Lily too but idk, they too aren't all that popular, just the most likely after Gumi.