The problem are that the Catholic won't see the need to adopt them in the start, and when they see that this are serious, they have already begun to call Luther a heretic and he has becomed increasing radical, so it's no longer possible to adopt his reforms without losing face and prestige. The only solution are if the Emperor begins to support some of Luthers ideas from the start, it would secure Luther somewhat and keep him from going radical, and likely put him in company with people whom could moderate him like Erasmus, whom Luther had respect for before he became increasingly radicalised. Maybe if we keep Philip alive we could see him seeing Luther ideas in a positive light. The problem are that the [Pope] may ally with France against Luther and the Emperor and in that case we may see the whole of Germany break with Catholic Church, rather than any reforms.