According to Animate TV, a spin-off anime of Cardfight!! Vanguard
titled "Mini Van!" was announced at a press conference for the third season of Vanguard TV anime. The production studio is DLE
. It's based on a parody manga
serialized on Monthly KeroKero Ace magazine. The cast for the petit characters in Mini Van anime will be the same as the original TV series.
Source: Animate TV