Yes, there are several mods like this. Most of them were not fully optimized for addon engine, which led to various bugs. Most notable are extreme fire damage of dragons and dysfunctional fight tactics of orks. So 2 years ago I decided to make my own mod with goal of maximum code adaptation and content preservation. Only here you'll see the original endgame title videos :)
There are also some fixes (typos, bugs and problems fixed later in addon by devs) and small quality of life impovements (like map hotkey from addon) here.
Initially this mod was made for russian version and lately translated to english by GaroK. Hope to get polish version soon and upload it here too.