About time you showed this off, X!
I'm not too optimistic about Evolution's modding potential
Neither am I. If there was going to be an Editing SDK, they would already be talking about it.
Yeah, maybe there's a small chance they'll still do a surprise announcement later. But, I very much doubt it. Once again, we'll be struggling to create mod content. We're just starting to see some significantly ambitious projects for Tron 2.0 in the last couple of years or so (your first User Error release included), simply because it's taken us this long to study and understand the full details of how the Lithtech engine for Tron 2.0 works. Due to tools that were poorly put together and very poorly documented, which slowed us down that much more. (But at least we were given some tools.)
Granted, Evolution is an Unreal engine game and Unreal is far better documented and supported. So I guess we'll see what can be done even without an official Evolution SDK.