Wouldn't it be wonderful to have the opportunity to upload an html page from the Page Menu on the editor?? Even if it could only work with html pages exported from weebly and imported back in, it would be such a big step moving forward!!!
It could allow you to make changes to selected pages all at the same time for a particular word/text you need changed using an external editor and then import them back in!
You could also have some of the pages (or even all!) translated from a professional company and then import them back in on your same plan, without you doing the horrible job of copy & paste for each translated page!