The revision that most effectively improves the pace of delivery is:
"Today, we need to think about the legacy we want to leave behind. We want future members to feel proud. We want them to feel included. Let’s make sure they do! We can if we choose to implement the changes suggested by our members. It’s time to vote!"
This version utilizes shorter sentences and exclamations that create a more engaging and lively pace suitable for concluding a speech.