Prioritize a set of syllabus changes that will let you do what you're already doing in your F2F course with minimal change.
If you're technology-averse or don't like to troubleshoot in front of people, make it 1 or 2.
How long did it take you to get really comfortable in a face-to-face environment? Online teaching and F2F teaching require different sorts of interactions, even if you're limiting the amount of change.
Students may be in a different time zone, have a young child at home, or have other family schedules to work around
More importantly, we will be testing the limits of our video-conferencing infrastructure. Class will go more smoothly, and you'll get more out of shortr live synchronous video conferences, if you are making use of simpler, low-end text-based interactions and asynchronous teaching when possible.