I don't think that we would release the TPOTS plugins, sounds like too much of a headache trying to make sure those still run... and even have to spend time trying to dig them up.
I'm not sure what/how things are going to work for fan-created ages but there is a good possibility that it might at first involve the UruLive plugins in an as-is basis, with whatever little documentation we have and hopefully some kind of example file... and mostly just let you guys figure 'em out. But the new UruLIve will be online only (i.e. it will have to connect to a server). So, there will have to be some kinda server for age creates to update and run their creations. So many things to figure out!
"Some kinda server" - hmm... Volcano, anyone?