Hi Armaan, thanks so much for the support! :)
Glad to hear that you like the combat system so far! As you suggested, I'm planning for the main/default system to be of the "turn-based tactics" style similar to the games you mentioned. Some of my inspirations are the Shining Force series and older Ultima games, so definitely something along those lines, with AoE attacks, a party system, etc.!
And yep, I do plan to support additional systems as well, like the "line dance" style and possibly even some simple forms of real-time later on down the road. I haven't worked out all of the details yet, but I'm expecting to have a gameplay setting to choose the base combat system to use for your game, then some additional settings to tweak beyond that based on the type chosen.
Hopefully that helps!