An outdated website is usually outdated in a specific, fixable way: it was built for a business that has since changed, on a platform that's since become hard to update, or by someone who's no longer around to make edits. The question worth asking before a redesign isn't "how do we patch this" but "does it make more sense to describe the business as it is today and build fresh."
Nova's approach to this is the same as building any new site: you describe your business as it exists now, for example "a website for an established landscaping company that's expanded into snow removal since our last site was built," and Nova generates a new site around that current description, with a live preview before you publish. This is a rebuild rather than a migration, Nova doesn't import or convert an existing site's content or design, so anything from the old site you want to keep, specific copy, photos, testimonials, needs to be manually carried over into the new build.
That's worth planning for honestly: a redesign through Nova means starting from a description rather than editing the old site's existing structure. For a business whose old site is genuinely stuck, hard to log into, built on a discontinued platform, or years behind what the business actually offers now, that fresh start is often less work than trying to untangle the old one. For a site that mostly just needs a visual refresh with the same content and structure, a more surgical fix on the existing platform might be faster.
No, there's no automatic import; you describe your business fresh, and then manually add back any specific content, photos, or testimonials from the old site that you want to keep.
You can typically point your existing domain at the new site once it's built and published; check your domain registrar's settings for how to update where it points.
Not always. A rebuild tends to make sense when the old site is hard to update or badly out of date; a simpler visual refresh on the existing platform can be faster if the content and structure are still basically fine.
Describe your business as it is today and see what a fresh site looks like before deciding whether to rebuild.