We are launching a site on a new domain that is taking the place of a group (subset) of pages in an existing domain. BUT The pages on the existing domain have really good SEO rankings in a very competitive category and we want to leverage the traffic it gets today in the best way, so....
Which of the following would be the best practice in this case (in regards to SEO)?
Modify the existing pages' content so that there are prominent calls to action that lead the users to the new domain.
Create permanent redirects for the existing pages for their counterparts on the new domain. This is more direct for the user but we don't know how it will affect the current ranking.
Something other than the above.
Many thanks for you help
Gary