The game will kinda have both styles at the same time. The world and sprites will be all pixel art, but in menus and user interface / HUD in general there may be some smoother elements.
Summarizing, it will be pixel art without the option to change it. That would double the required work needed for graphics and would make it harder to setup in general. Perhaps in the future I'll remaster the game or something, but I'm not even sure if I manage to finish it in the first place, due to kind of busy real life. Currently I'm working on a smaller project, that has a much higher chance to be completed.