The ongoing story is as much a hindrance as it is an asset. When I have to explain to new players why the Sun and Moon have been switched out twice or why the Spider exist, I can feel their interest wane.
That is why I usually don't explain these things.
There are 9 clans.
Everybody get's a cliff-notes version what the clans stand for.
Further history lesson will be ignored since it does not add anything to the experience, Except being as boring as a history lesson...
If someone wants to catch up more power to him, but I will bring not up anything by myself.
I guess the point I am trying to make is that the story is important for the player playing now.
But nobody is interested in story prices from the rain of blood period.
So having a setting which does not specify where it stands in comparison to past or future events is not problematic,
as long as you provide story within the setting you describe.
There is an emperor is calls himself Hantai (I will not specify the number) and there are 7 great clans and a lot of minor clans
This might be before the 2nd day of thunder or after Onyx.
This advice is sound and it is something I already do, and it helps that the roleplaying games I run avoid the canon storyline and issues I brought up like the plague. One of the best parts of 4th Edition RPG is its timeline neutrality and divorce from the story.
Still for those who are new to the game and want to delve into the story... well its a mess to say the least. Unfortunately the largest events, and hardest to gloss over, in the story have often been the most problematic.
My suggestion is to read everything in L5R as being written by an unrealiable narrator, not as if written by an omnipotent one. Thus one doesn't need the story team to explain the contradicton, since the history in the setting is also just fiction, and everyone in the setting just tells the version that suits his or her purposes best, no absolute facts on what ever happened, not even when the weekly fiction gives you the impression you are reading what is happening.