Note to Much Ado About Nothing, 4.1.234: "Let this be so, and doubt not but success / Will fashion the event in better shape / Than I can lay it down in likelihood"
Let this be so, and doubt not but success / Will fashion the event in better shape / Than I can lay it down in likelihood: If you believe this (my prediction about Claudio's change of heart) can be so, don't doubt that what follows will make the outcome better than I can predict as a likelihood. A little later the friar says that "this wedding-day / Perhaps is but prolong'd."