Thanks to VividAriah for the heads up on this!
Distributors are starting to show that the Falcom Heroines Nendoroid Set is delayed. Best example that I’m finding is that Amazon.co.jp is now showing 4/30/2012 instead of its previous 3/31/2012. Amiami Shop is also showing ‘Late April’ for the release as well.
I will keep my eyes open for more information on this.
UPDATE. Thanks to Varion for this information.
This tweet states that there wasn’t a release date planned, but that they’re aiming to have the Nendoroids released sometime around the end of March and the beginning of April.
I will make the release date for them on the calendar tentative, and update it.