If Henry and Catherine of Aragon had succeeded in producing a healthy male heir, there obviously would have been no government-driven Reformation of any kind. As with the Arthur scenario, the key questions are whether the Protestants would have gained much of a foothold in the face of fierce official disapproval, and whether England would have assisted the Dutch rebels against Spain with a Catholic on the throne. In my opinion, the answer to the first question is clearly no, although it is unlikely that Protestantism would have been eliminated altogether. As to the second question, my best guess is also in the negative; aiding Calvinist rebels against a Catholic king would have been a bridge too far. England would have remained neutral, and the Dutch rebellion might have failed, with consequences we would still feel today.