For me it would depend on what and how they change things.
While I'm far from a canon purist I also don't want then to change everything so it stops being L5R and becomes a new game that just has the old label.
That said the old canon has some problems that need to be addressed. Things that where change to advances the story but jut did not fix snuggle into the timeline.
And other places that just make no sense due to writes or editors missing keep dates or names because of deadlines.
I just don't want to find that everything I know about L5R changes (Pre-coup)just so they can make it their own.
They could do away with the coup and have Fu Leng return another way and I would be fine with it, but if they start doing thing like changing the first Day of Thunder, not having Fu-Leng be the bad guy, getting rid of the battle of the White Stag, etc. then I'll be done with the frnchise and jut keep play the RPG in the AEG timelines.
Just to clarify this is my opinion, you are free to ignore it and make your own.