The fans of the third game are definitely out. They will continue to gather dust until they die out, rather than switch to another game. When they learned about the initiative regarding turn order for units, they mumbled something and slammed the door loudly. So, relying on them and the fans of the second game is not an option at all. Those who develop the game (the second and third games) are simply interested in it, they are involved, and they are also getting paid. That leaves the fifth game and everything else. The situation with the fifth game is approximately the same. That leaves all the others and the newcomers. It is on them, for the most part, that we should focus, and not on the dinosaurs.
We need to focus on the fans. It is also useful to attract newcomers to replenish the ranks, but if the old, die-hard fans are extremely unhappy (and for this purpose, the fans of 2, 3, 4, and 5 unite), then the chances of creating something truly popular are almost zero. Simply because this is an indicator of quality.
There are so many similar games that it is more of a mainstream than an avant-garde.