You REALLY underestimate how good season 1 was.
Nothing guarantees the success for ages to come, but, right now, it is a massive one and there's 0 reasons to believe it won't keep being produced unless any given season completely tanks it.
Wait, for Netflix it was very good.
I wont deny it, it broke some records too.
But that was not my point why I think it wont reach more than 4-5seasons.
The actors going to get older, the more time it take, the more problems could start.
I seen stuff like that often, series destroyed themselve with how much it took to get more seasons.
And people gonna lose interest or became of hating the serie, also the fact that actors are human and we never know what could happen or not, just look at Gerald in the witcher, Henry got replaced and the views got massive lowered.
Many factors play a huge role in such series who trying to work for multiple seasons.
Sitcoms like TBBT wont have these issues like having problem with older actors, One Piece Luffy is still very young in his current manga version. People will dislike the mini thing and more complains will happen.
I saw this happen to many series and I doubt OPLA will be clear from these things...