So, if by some twist of fate the Belgians either do not revolt (maybe reforms are pushed through or something) or lose their revolution (maybe they fail to gain the backing of the great powers/the Netherlands is more successful), what benefits to the Netherlands as a whole would keeping Belgium have? Belgium had a fairly significant industrial base, right? Do you think the Dutch would attempt to assimilate the Wallonian Belgians further, or would a similar arrangement to OTL be set up in the 'southern' provinces?