Will google penalize for transforming a page?

Hi Folks, need some advice here!
In an ecommerce store I have a category page that I would like to strenghten.

With real PR outreach I can make an article that and get some powerful news site backlinks, with my keyword that I want to rank for.

But to make this happen I have to transform my product-category page to an article page, to make sense linking to it. I will leave the original "category" content at the bottom of the page, but I will have to create an article above that…

Will google penalize for transforming a page?