One of my websites is 6 years old. It always ranked well but was never a real performer because the content was not a good fit between the audience. Now, I have the new way more researched and targeted content almost ready for a mid-March re-launch. But, in the mean-time. I would love to demolish the old site and play around with a blank canvas site until March - i.e. play with minimalist content + Google Adwords etc. But, while the blog will remain, if the rest of the site is deleted, and minimalist content is put up, will it's ranking drop like a stone?