From the very beginning of the game I was secretly hoping for some plot twist and that Marie so MC ex-wife was still alive and had faked her death and that MC would have the opportunity to confront her after what she did by disappearing for many years with his daughter and also involving in this...
According to dev answer that I saw on another website shortly after the first release of the game he wrote that he planned to add pregnancy in the future.
And there is actually a pregnancy storyline with Aria at least according to changelog from v1.30
It was probably once one of the most popular games for many players, but unfortunately dev's behavior and approach to his own game caused many players to quickly start hating this game more than loving it.
But despite everything after many years this game was finally finished and of course...
Yes because it is not a typical porn game like "meet and fuck" but rather a slow burn romance game so if someone doesn't like slow burn games, unfortunately this is not game for him.
There is no incest in this game because MC is not related to any of LIs and even though two main LIs are related because Elena is Bella's aunt, there is also nothing sexual between them either, so I wonder why on some other sites someone added "incest" tag to this game.
v0.39 is in fact the last update of this game in which we have added new content and game endings, and this game already has the "Completed" tag on other websites, and as I wrote earlier the final update of this game so v1.0, will be only a technical update with bugfixes and upgrade to a newer...
As far as I know, the dev has never answered this question about how many chapters he has planned for this game, and although the main plot of the game has moved quite far forward, it is rather difficult to predict how many more chapters can be expected, so it is also rather difficult to predict...
They are definitely not main LI and besides, since the game is already finished, apart from the fact that there is only going to be one more final update v1.0 which will not have any new content but only some bugfixes and an upgrade to a newer version of Ren'Py, there is nothing to expect more...