Dualtail recently announced the next installment of their Venusblood series, due to come out in late march. More info can be found at their website here
http://ninetail.tk/td10/VenusBlood-FRONTIER-.html
The most important thing to note is that they learned from the mistakes of their last game(which lacked corruptible 'goddesses' and instead had more initially evil characters) and have gone back to their previous formula.(their previous formula being converting 5 or so goddesses throughout the course of a game to fight for you)