Well as Toribash Next is running on Unity3D engine, I believe some of these additions such as more realistic lighting system should pretty much be given.
I have some experience with the engine in question and I think when it comes to modding we can hope for quite a bit more than you are asking here. So here's some additions to your wishes I'd like to see:

Uninteractive objects: These could have a lot of use beyond aesthetic, if you made them note whenever theyre touched by the player. It would be great to be able to create an area where you can cause damage to player without otherwise affecting them physically. Also depending on what kind of trigger/scripting system will be implemented this could allow for tons of different applications. Being able to set different gravities for these would be extra neat.

Polygon editing: We can be sure there will be lots of new shapes to work with, when Next comes out. However instead of developers spending resources on creating all new polygon editor I'd like to see ability import custom models from 3rd party 3D modelling software like Maya or Blender3D. Seeing as there seems to be something similar already being implemented in our regular toribash modmaker, I would consider it very odd, if we didn't get it on Next as well.

Custom joint and part creation: Hampa already teased that we will be able to change the order of bodyparts and joints, so that atleast gives us something to work with. But of course that alone isn't what we want. My hope is that we'll also be able to add extra joints as that would be the next best thing if your joint state wish doesn't come true. If it doesn't happen we'll just have to go Frankenstein and chop up multiple toris into one.
I also want more shapes for these bodyparts.

Realistic aerodynamics: I dont really have anything to add to this wish. I just thought I'd point out that Besiege also uses Unity3d engine.

I thought I'd also add some suggestions of what I believe would still be realistic to wish for:

Objects moving independent of physics: I want objects that still collide with the player and push them around but aren't themselves affected by the collision. Also some sort of waypoint system for setting up paths for them to follow would also be in order.

Timeslider for viewing replays: Like what we have on every videoplayer out there just find the wanted frame on the slider and click to skip straight to it.

And here some longer shots:

3D models with skeletal animation: The way animtion is done in most games. Being able to add these to mod would do a lot for turning our mods alive. Even cooler would be an option to parent these models to toris when viewing a replay and finally see what the movement looks like with more humanlooking models.

Being able to edit multiple frames within one turn: Lets say your turn start on frame 0 and lasts for 10 frames. I want to first tell my wrist to start contracting from the start (frame 0) and then tell it to change into extending on frame 5. Maybe you could even use the time slider I suggested earlier to pick frames on your turn. This would give players extra control in mods like wushu while still keeping the exitement of having to plan out for longer turns.

I might post later with more suggestions.