While some functionalities are still missing such as spell chanting, Blue Papilio healing monsters and running away when it is left alone, dynamic crit range (which will drastically improve Lili's usefulness in the later part of the game), the style of the battle system won't change for two main reasons:
1- I really love tabletop games, and I like tokens a little too much...
2- The game is actually very close to getting completed, and completely replacing the battle system at this point would not only introduce some heavy delays, but it would also introduce many bugs.
However, while the style in this game will not change, the sequel will have a different style, and that includes the battle system which might be something you will be enjoying more, you can read about it here (and see a few WIP screenshots): https://www.patreon.com/posts/future-of-legacy-76603389
You will be able to import your save over to the sequel and keep all your stuff and choices, or just start a new game with default settings.