The phrase "new wrapper" refers to something that has been given a fresh or different appearance or packaging. It can be used metaphorically to describe a new or updated version of something. Full definition
It's simply a novel way to «bundle» 401k services — the same tired, expensive product in a bright shiny new wrapper. (employeefiduciary.com)
Over the last few years, we've heard a lot about how «Big Data» — which as far as I can tell is just data mining in a glossy new wrapper — are going to revolutionize science and help us create a better world. (scientificamerican.com)
Given the wide variety of new wrappers and branding that will appear on KitKats throughout the world, it appears that another opportunity will soon be well at hand. (theverge.com)