IIRC, that has been there since the game changed hands back in 2019~. Venus Noir has threes games under their wing; Seeds of Chaos, Jessika's Curse and The Eternal Feast. The first one is their main priority and money-maker, Jessika's Curse is a distant second, with two or three updates a year if lucky (as of right now). TEF, although not officially abandoned, has been pretty much forgotten. I mean just look at the page on their website and compare it with the others; it's completely blank, with a single paragraph talking about a demo release sometime in November (2019). They pretty much stopped caring.
TEF is my favorite by far but it's admittedly very niche for its own good and has basically no income to sustain itself, not even by a single person. By all standards, the game is "abandoned". I don't know why they accepted the game from Yron Vol (former dev) if they were just going to leave it like this... I don't like vague hopes - if something ain't happening then just say so.