Our site has product reviews, which are very important to us. We are currently in the process of moving over to a new CMS and doing 301 redirects to new URLs.
The issue we're having with review pages is that there are historical pages with accumulated reviews. These pages do show in the SERPs and we don't want to lose any SEO value and rankings. These are not static pages; as new reviews come in it pushes old reviews on to the next page. Also, the number of reviews displayed on the old and new pages are different.
Should we map the old review page 25 to the new review page 25, or should we permanently 301 redirect the paginated pages to a “view all” page (something similar to this: www.example.com/product-xyz-reviews/view-all/).
Does anyone have any good advice or recommendations to share? Any help would be appreciated!