Assuming you are talking about the Japanese Vocaloids, I can say that the exact date is unknown. They might not even come at all.
Several voice providers do not have the ability to speak fluent english, therefore, some vocaloids may not arrive in the US at all.
The only two japanese vocaloids known having an english voicebank are Megurine Luka (who's eng voicebank was mainly targeted at Japanese users) and Hatsune Miku (her voicebank has yet to come, yet is is confirmed and currently in alpha stage)
there is a game based on vocaloids, but originally its a program.
Probably utauloids
no
There are a lot of VOCALOIDs. VOCALOIDs are now up to at least 45, and their are more than 60 voicebanks.
No. VOCALOIDs are not couples. VOCALOIDs do not have to deal with anime or couples. It's only a singing program.
yes
Nine months.
There is no any other VOCALOIDs. All vocals found in VOCALOID wikia are the original VOCALOIDs made buy actual music/recording companies. Haku Yowane, Akita Neru, and Hatsune Mikuo etc. are fanmade based of the VOCALOIDs voicebanks.
when hell kerbecs will come in india . I have to play with it
A VOCALOIDs price ranges from $100 US dollars to $300. Sometimes a VOCALOID can cost $100, but this is very rare.
On channel NBC.
around $200