Hello, is it a optoin that the game makers add older Festival-racelist series inside the game? so that we can complate the older playlist series? and earn points from older playlist series (Festival-Racelist) that we mist to play?, for more play time and fun! 
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Please read back through your post. You’ll see that nothing you said made any sense at all. I have no idea what you’re trying to say.
They asking about completing expired Festival playlists. Once they have expired you can’t complete them.
I’m lucky enough to have started day one with the pre launch and have 100% completion of everything. Took a bit of effort and money when some of the weekly events wouldn’t trigger on my PC. To complete I had to sign up for an X-Box live account and complete those events on my X-Box.
What will likely happen is if and when Horizon 6 launches they will stop new weekly playlist events and just repeat previous ones. This is what they are doing with Horizon 4.