There is not much of a point in my opinion of reviving creatures. If someone sacrifices a windy. Then it should remain sacrificed. Otherwise it defeats the purpose of sacrificing it in the first place, if someone has accidentally sacrificed a windy. Then perhaps putting a lock on certain creatures to keep from anciently sacrificing it similar to what is there for the bestiary.
As for reviving Alliances, I do not think there should be a set way to do that... since there were different ways/reasons it ended up that way. And if you are looking to revive an alliance... then it should be a way that is unique to yourself and the people who wish to do so. Otherwise it takes away from the importance of reviving that alliance.
Automating anything of importance like that takes away something. Sometimes it makes things easier, leaving time for other things. But sometimes it takes away the human element.
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Now as for revival of concepts, ideas, or research.
PWR-Player with Role- or RPC - roleplaying character (I think) pretty much already being done in a way with the tag system but a different setting. Though that system is incomplete for now while other things are being worked on and thought about. PWR/RPC was a little different, at that time it gave a reward and some direction, it reinforced the role that person took on. That system had its flaws and some got upset. But the elimination of it, disrupted something in md society for the rpiers. At the moment most of us are vets and survived past that point. We know who we are and where we stand. So the current population does not need the PWR/RPC, for we do not need that reinforcement. But to give us something to do, to work towards, offical titles or goals can help. To revive this it would take the work of all of us. A discussion and the responsibility of us left to come up with something official. By offical, I mean recognize by md society. Not something that has to be made or created.
Council- it has had its problems and multiple deaths. There is also the Kings Council, but for the public that wants to be apart of something and do something. And for lands or groups that do not have the capabilities of attending the Kings council since it is for rulership. So if this was to be revived, perhaps it should be done with set representative outside of the leadership and that anyone is welcome to come to a meeting to discuss things. There could be public and closed meetings for the council. The closed meetings would be the council deciding something or talking about things to do for the public. Like events. The public meetings would be discussions on current problems (social and not social), direction, ideas, or maybe you just did not get enough ranting done at the Soundbox. What would need to be decided is how structured the council would be and adjust it so that the flaws of before are not as harmful. I believe one of the problems was that who ever was chosen could not keep up with it. It was a popularity test. So perhaps people that are chosen for it now or in the future. Is decided by the land where they reach an agreement or as close to one for who will be on the council and then just the ruler ship will decide the representatives(2 people) so a total of three people from each land/organization if they do not have a land affiliation. The representatives would attend most public meetings to discuss things that affect the land. Council members make decisions, plans, and try to solve problems.
Meh. that is all I have on revival of concepts discussion. Most things that you want to revive requires effort and there should not be a set system.