In a recent blog post from 21st July, Kaga revealed that Vestaria Saga I is currently in the final stage of debugging and that it will be released as scheduled during Summer 2016 (by 21st September).
Additionally, Kaga updated his Q and As post to clear things up for those concerned about the game’s advertised high difficulty. A special thanks to Kirokan for helping me translate the post!
To begin with, Kaga states that the game is designed for experienced strategy RPG players. Typical strategy RPGs tend to get easier towards the end, but Vestaria will become more difficult the closer to endgame.
If players don’t properly plan how to distribute experience, items and funds from the start, the game may end up unwinnable. Also, Kaga advises against only training a select few characters, as all units are fielded in the final map.