User blog comment:OtterJiang/So, Uh.. VOCALOID 4?/@comment-3076833-20141222040520/@comment-30602727-20141222145534

But that's YAMAHA though and it's to be expected. :/  YAMAHA always does this with their VOCALOIDs and I don't think they're going to change that. In the end, they do get sold... just that Mew and Rion (which was Bplats collab and MoeJapan) ended up getting overshadowed and unnoticed.

Internet Co is also following this pattern, with Chika, kokone, and Gachapoid. At least with kokone, we got two months notice, unlike the other two. Probably because kokone and Chika are around the same voicetype as GUMI and Gachapoid was pretty much only updated because of Gachapin's 40th anniversary. :/  I don't think these companies are gonna care too much about whether these VOCALOIDs get popular or not. They pretty much did them for the sake of doing them (Internet Co most likely, I'm never sure what's on YAMAHA's mind).

I don't think V4 is a worry all that much. Only like what, 4 companies unveiled their V4s? YAMAHA for VY1, Crypton for Luka (and mention of Kagamines in tweet), AHS for V2s and Yukari (which they're working on one at a time it seems, not all at once), and VocaTone for Ruby. That's not a lot at all, especially if they're being worked on one at a time.