We have old product data that is being updated (approx 30k sku's). Most of the old pages have been indexed and drive the majority of our online sales. But, the updated products have different titles, H1's, etc and have been re-formatted for the better in terms of usability.
So, should we redirect thousands of pages to the new pages? Will Google be ok with that?...or should we reformat the current url's with the new data? And, if we reformat current url's with new data...the fear is that the on-page elements that the pages are being pick up for will get wiped out, (be it the H1 in some cases or the title or alt tag for another, etc) because it's simply too much to retain them during the import.
Please share