That said, there is no reason why anybody can't make a mod with some of the suggestions in this thread, and no doubt they already have (including myself, if not to replicate everything mentioned here).
Ok, but I think we should recreate some code or idea of that thread.
A modding thread that's been dead for almost 5 years will provide little to no insight into current modding; countless amounts of changes to the Forge API and Minecraft's own code have been made, and copying anything from that thread would require so much changing and rewriting we might as well just do it on our own from scratch.
We are currently rethinking the way we are going to add suggestions to this project. We will be discussing each suggestion that could potentially have a flaw or reason not to be added (regardless of what list it's been on) individually, with the least likely to stay being discussed first. Feel free to contribute to the discussion here or on our discord server.
It's been a long time since we've posted here, and in the meantime the Community Revamp has made some great strides. As we grow closer to an initial test release, I feel it's relevant to share some progress images of our first implemented suggestion, the Fall Forest by fishg. This wondrous biome is home to giant pumpkins, turkeys, black bears, and even autumnal creepers. There (and in new Maple Forests as well) you can gather sap, and make delicious pancakes. In addition, we've added a few toys- gunpowder blocks for storage and explosions, and a couple new naturally-generating structures for you to discover.
The gallery for the Fall Forest can be found here.
In other news: the Minecraft Forum's days are limited. On June 16, 2019, the forum that birthed the Community Revamp will close its doors. In an effort to preserve the people and culture of the Suggestions Forum that this project draws its life from, we have created a Discord server dedicated to the Revamp. You may join here.