seems all the addons you have listed are "All Rights Reserved". I don't think you are allowed to mess with that. (personally I don't understand why you would put such a strict copyright on a video games addon, my addon is under MIT)
My addons are ARR because I don't want other versions of my addons floating around in the nether with other people coming to me with random bug reports. I also don't mind if people ASK to use a snippet of code, but if you downright steal it, I won't be friendly. It's much better to learn from something and code it your own way.
Lastly, the patch JUST went live YESTERDAY. Give them a week before asking about taking them over. If you wanna submit code to their authors though, they might appreciate it.