Hatsune Miku
Hatsune Miku was the first Vocaloid developed by Crypton Future Media after they handled the release of the Yamaha vocal Meiko and Kaito. The name of "Hatsune Miku" was conceived soon after the Vocaloid 2 announcements, when an English and Japanese vocal were developed for the character. The intended design was delayed and later used for Megurine Luka instead. Miku was intended to be the first of a series of Vocaloids called the ""Character Vocal Series"", which included Kagamine Rin/Len and Megurine Luka. Each had a particular concept and vocal direction.
Vocaloid 3
Throughout pre-Vocaloid 3 release promotions, SBS stood by a claim that you can recreate English with SeeU's Korean voicebank, and in Dec 2011 even went so far to say SeeU is actually "trilingual", although the comment seemed odd as SeeU had only two voicebanks. In Feb 2012 they stated that they were working on a full English voicebank. In August 2012, SBS reported that the recordings for the voicebank had been completed and was now going through a tuning process. Her English VB will be similar to an append and her design slightly adjusted. On February 4, 2013, in response to a Korean fan's question about the progress of English Voicebank, SBS posted a reply that the development of English Voicebank is on hold. Due to Dahee being incarcerated in 2015, SeeU English is not expected for a long time.