Bumping the thread because there was an update earlier in June:
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Dev has explained why he went radio silent for 3 months and what he was doing in that time. In short: he has re-written a lot of the story (because, as he said, "plot is important"), added more facial expressions, improved GUI/battle event log/dialog and finished some events.
Next update will be in August. If things with development will go smoothly, he will post it earlier but if something goes south... Basically, early post - development goes well, late post - the opposite.
There was nothing about release date - neither in the update or in comments (unless I missed it).