We'll see! Adding new weapons is a lot of work and has a big impact on the game, so I'm being very careful about what I add. There will likely be more ones added later, and at that time I'll think about which one fills an interesting gap left by the others. :)
I imagine that it's most difficult to add ranged weapons, because the laser arrows don't adhere to... wait. just got an Idea while writing this. making topic about it now