Dutch dreadnought plans and the end of coastal battleships

Were the planned Dutch dreadnoughts intended to replace the Netherlands' older coastal-defense battleships?

Yes: they were the next generation, and older coastal ships no longer met the strategic demands created by Japan, Germany, and imperial defense.

The new ships would replace several older coastal-defense classes because the navy could not operate every generation indefinitely. More importantly, traditional coastal battleships no longer matched threats to the Dutch East Indies or the changing European balance. Japan's rise and German naval competition increased the price of maintaining Dutch security in both theaters. The program represented the new cost of preserving sovereignty, imperial communications, and access to world trade.