Would it be possible to add support for modded weapons ?

1. Reforging them with the correspondent ore/item
   (or if it's easier, letting us add them via the config file)
   

2. Applying modifiers when looting them in chest/dungeons

Besides that, do you plan on adding other modifiers in future updates ?
Thank you for your time and dedication to this mod 👍🏻

This can definitely be done with a datapack already. Check out the readme.