If France were Protestant then there would be no Republic in Britain, as Charles would not have needed the money to fight first the French, then the Dutch and then the French again.
I think it far more likely that the Church of England becomes more Calvanist as the King would propably have married a French princess than anyone else.
It would also I think destroy the power of the Pope, as with out France to balance the Italian states the Pope would always be Italian and Catholosism will become much less powerful in Europe.
You see, if more and more countries fall to Protestantism, it may bring things bad - the fails between the major lines like Lutherianism and Calvinism, with the 'Papist threat' getting more distant and harder to unite them, their hard divisions start to get focus, and heat rise... 'holy wars', who know... And maybe ANglicanism radicalise, or the Low or High church win, problems come... By example, High church win, accusations of cryptopapism..
And anyway, religions are used as excuses much, nationalism was budding and national interests are there, so dutch-british and dutch-french wars amy happens anyway.
And you forget spain, portugal, etc... Paradoxaly, maybe in the long run, the Orthodoxes may feels threatened if the protestantism also get strong eastward, and who know, they ally with catholics... strange times to come later?