How could we change early Reform history in order to retain Zwingli's views as a third branch of Protestantism, along with Lutherianism and Calvinism (if Calvinism or any Calvinist-equivalent appears as a strong branch ITTL, of course)?
What would be the consequences of Zwingli's semi-anabatism (reel or percieved), his rejection of the Revelations (Apocalypse) part of the Bible, his partial rejection of classical Augustinism, and relatively more liberal stance on religious and institutional matters, emerging as not as an inspiration of modern Protestantism, but as much distinct from other branches, than Calvinist are from Lutheran churches (meaning, not wholly separated and antagonizing, but with a religious and identitarian difference)?
What would change in Europe : greater/similar/smaller expension of the Reform?