ɪn tˈuː θˈaʊzənd nˈaɪntiːn, fɚðə sˌɛləbɹˈeɪʃən ʌv fˈɪftiːnθ deɪbjˈuː ˌænɪvˈɜːsɚɹi ðeɪv skˈɛdʒuːld tə ɹᵻlˈiːs θɹˈiː kˌɑːmpɪlˈeɪʃən ˈælbəmz wˌɪtʃ kənsˈɪst ʌv tɹˈæk sᵻlˈɛkʃən bˈeɪst ˌɔn fˈæn ˈɪŋkwɚɹiz.
In 2019, for the celebration of 15th debut anniversary they've scheduled to release three compilation albums which consist of track selection based on fan inquiries.