Thanks for writing. No, submissions to the Clinical Trial Visualization Redesign will not be displayed on ClinicalTrials.gov. ClinicalTrials.gov is just a resource that we've included to show you how clinical trial information is currently being presented.
You're encouraged to think beyond the current presentation and redefine how the content is displayed. Please let me know if you have any other questions.
So while submitting software is not required, you're welcome to do so in addition to the other submission requirements. Please note that you must meet all of the other submission requirements in order for your design to be eligible. That means that you'll still need to submit a visual representation of your design in the form of uploaded images. In addition to that, you need to include all of those images in a ZIP file that is uploaded to your submission.
Please let me know if you have additional questions.