Universal Page Updater/Morpher

We are working on the Website Creator for Google Spreadsheets, called websheet. You can read about it more here: [login to view URL] We are currently thinking of a new feature to add to our sites which should auto-update the website with a good looking effect to reflect the actual changes. You will not have access to our backend. Instead, we will share with You 5 pages, which reflect different changes which user might do. We should try to update as least as possible, the transition effect should be good looking on all devices. # For example, Page0 changes into Page1. Here we changed the list of items inside this block: [login to view URL] Here we would want to only update the list items. # or Page0 changes into Page3: Here we changed the order of the blocks and changed the text style and background of the block. #Test Pages [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] #The solution You will be working on should be universal, allowing us to morph/update from each page into another page in best looking way. Before we agree working on this, I will want to know your approach on solving this issue. So please do some research on what is possible and what not.