Team 17 fan here going way back to my old Amiga 1200 :)

Any hope of seeing AB Evolution get a linux version as well?

I doubt ... Because, no Unreal Engine for Linux.

I doubt ... Because, no Unreal Engine for Linux.

Unreal Engine is cross-platform. There IS a Linux version.

With its core written in C++, the Unreal Engine features a high degree of portability, supporting a multitude of platforms including Microsoft Windows, Linux, Mac OS and Mac OS X on personal computers and many video game consoles including the Dreamcast, Xbox, Xbox 360, PlayStation 2, and PlayStation 3, although the latest version of the Unreal Engine (UE3) does not work on previous-gen platforms.

I have remembered there was no Linux version pour the UE3, when available. (DirectX)
Apparently, it's not the case. (OpenGL for it)
Sorry.