You mean the oval
sign on the existing attachment arm/backer. You are just swapping out the panels...
Are you digitally printing the face or dimensional?
If it's dimensional lettering or applied vinyl and you are painting the panel (probably some metallic color}, I would call out a 1/2" or 3/4" bullnose edge, draw a side profile and add a note for client to verify side profile prior to fabrication.
If it's digital print, do not add a routed edge, draw a side profile noting that the digital print is not recommended on a bullnosed edge, and have them confirm it.
The stores are behind the security area and unless you have a federal clearance to have a look, you have to rely on the client to get you that info...