Do you want to update or replace?

replace

I like this arrangement

Do not remove or change! Great entry....etch the glass with some stencils and make it look like something rare and super expensive! Etching would be the easiest and least expensive and although seems intimidating, is super easy...do a try on an old piece of picture frame glass to get feel, this is so easy...really!

you can even add address or a name :)

I agree that paint and etching are easiest. Window film with a pattern can be nice aw well. Then just add a new and more substantial door handle.