Ajax and PSV will bounce back to epic form. Let's just say what they're encountering now is basically a whole style of weakness and instability but with quite small amount of time, things will start getting better. There are quite variety of teams that would keen on accumulating the league title but you do think is possible? Nothing is impossible in football because every one is busy working harder than they did previous season to win something tangible and elegant this season, there's no room for excuses and there's room for improvement and titles.
Ordinarily these two are usually the best with form in the eredivise, like you best described, it is usually an epic one whenever they are in their top form in any of the seasons. It even looks to me that PSV may be quicker to recovery than Ajax because even for a long time now over thr years that is how it has been mostly and so I will not be expecting any less with PSV most especially.