Hello everybody! I was the one that proposed the idea of RFC scenarios, and, though I haven't said it, my idea was pretty much like Rhye said. But, if things go smoothly, we can think later on some modifying of the RFC code, specially to add (or replace) civs, UHVs and the like.
I'm thinking on start by adapting my existing scenario
The Years of Rice and Salt (which is probably in final version, if no bugs or inaccuracies are present) to RFC.
But also I would like to see starts on 500 AD (after the falling of the Roman Empire), 1492, 1798, and maybe 1900. Also we can make some alt-reality scenarios, like the Chinese discovering America (because there wasn't the coup d'etat against Zheng He, and the Treasure Fleet -that now is said to have reached Africa, and Australia- was not razed, what finished the only period of Chinese naval predominance in the Pacific). This is just an idea, a lot more sure will pop up, along the way.
The poll idea is good, but I think that no more than 5 possibilities should be proposed at a time. I discourage the 1830 scenario; sure, it's pretty interesting, but it might take a lot of code modification, so maybe for later. Instead, one some years before, in 1798 (or 1800) will be much easier. It will start with the Napoleonic wars, the crumbling of the Spanish Empire, the colonization of the Western USA, etc.
And one idea for a possible UHV condition for Germany in this scenario: build a railroad from Berlin to Baghdad.