I find it extremely unlikely that Love Letters/Lovesick is going to ever be completed. From the get-go, there are already too many problems present, and the game having SJW developers is the biggest point that I believe will doom it to death. Drapeis apparently going by "They/Them" pronouns, the tumblr-tier artist with the past that is going to scare away most normalfags, and using a fucking discord server of all things to develop the game.
They could've made a subreddit or even a fucking board on one of the more esoteric imageboards, but they chose discord and ended up creating some strange shitposting/fan/development hybrid that breeds drama and procrastination on the mods part. They should've made two separate "rooms" (I don't use discord I don't know its terminology) to keep things organized. One for the fan posting and speculation, and another strictly for development and recommendations, so the developers can actually focus on the game instead of drama which is always rampant on those types of websites.
The fall of yanderedev provided a power vacuum that they were smart enough to use to advertise their own project, but other than that the game they've created adapts many traits from yandere simulator itself and doesn't appear to be anything spectacularly different or innovative, just what yandere simulator "should've been".
Another thing. Do people really expect the 10 rivals to fix the game? The environment is bland as fuck, the AI and depth of the game is superficial and very rough, and all-in-all despite its somewhat polished appearance, the game is very elementary in its creation. I can't imagine doing the same shit over and over again 10 times will be fun, especially in a world as limited as yandere simulator with its box-shaped school and minimal character development and no relationships whatsoever except for a few that have plot importance. As hard as it may be for yanderedev, I honestly believe completely trashing the school and rebuilding something with a much more realistic and diverse environment instead of "Box school surrounded by box fence with 2D tree textures outside" is the best thing that could be done right now for the game.
Despite what people say about the easter-eggs being a waste of time, they have great importance, as they are what the youtubers reported on the most. It has been the sandbox nature of this game so far that has been a selling point on youtube and other platforms since an actual story and antagonist doesn't exist in its world yet. People are absolutely bound to be disappointed when they play it for themselves.