According to Quirose official website, the release of OVA "Heart no Kuni no Alice" was postponed until undecided date. Quinrose recommends the customers to cancel the pre-orders. The OVA was supposed to be released in this November.
The production company "Minamimachi Bugyousho" is usually involved in anime production as a subcontractor.
"Macross Frontier" (the original contractor: Satellite)
"Real Drive" (the original contractor: Production I.G.)
"Death Note" (the original contractor: MAD HOUSE)
"Terra e..." (collaboration with Tokyo Kids)

"Heart no Kuni no Alice" is the first anime that Minamimachi Bugyousho produces on its own,

Source: Quinrose diary
Source: Wikipedia
Source: Article from ANN

Edited by dtshyk