yeah, these two links seem to have conflicting or confusing information. The first one you sent says warnings start now in the next update of high sierra, but only shown "once", ten it says "The next version of macOS after High Sierra will include "aggressive" warnings about 32-bit apps before they are phased out entirely." I suppose that means it'll always bug you about it and not just once when 10.14 comes out later this year... then 10.15 will stop it.
But this other link says now 10.14 will only be 64 bits, hence the next update this year will prevent Pd extended from working.
Let's see