Ehm ... Oda started Elbaf with 3 totally redundant chapters (aka 1 month in real world time) about an "adventure" in freakin Road's lego castle ...
That's how serious he is about "speeding things up" and "ending it soon".
In order for it to end in 2027 (3 years if you mean at the end of 2027) we would have roughly 90 chapters left with Oda's current output (about 30 chapters per year).
There is no way on earth he is going to fit all the stuff that is left into 90 chapters. We got Elbaf, Laughtale, final war etc.
Heck, freakin Egghead alone had 68 (!) chapters.
Aged like milk as per usual with Oda's interviews btw