You can use wish ill upon as in I would never wish ill upon anyone, but I hope never to see her again.
The following are informal
If the two parties are in the same place, then one of them can give the other the evil eye. A slightly cruder, less formal expression is giving someone a stink eye. The recipient of the stink eye doesn't necessarily need to know it - it can be given behind their back. If you can't actually see the other person, you'll have to settle for sending them bad vibes.
If you hope someone has bad luck, you could wish bad juju on someone.
If you have a superstition that some small action on your part could bring them bad luck, you can jinx them by performing that act. (West Coast AmE)
The difference is in the degree of change applied to the object.
Enhancing leaves the main structure and functionality the same, most features intact, and generally speaking improves the object by applying small modifications.
Revamping often changes the basis, some fundamentals, some key features. Structure can undergo some changes, but the functionality generally is kept as is although we can see re-prioritizing of some elements.
Overhauling involves disassembling into constituent parts, examining each of them carefully for flaws, replacing with equivalent new parts (subsystems), in order to bring the system's performance closer to the original specification/idea.
Those words are not interchangeable. You could overhaul an engine of an aircraft to bring the engine back to its "factory new" performance. You could enhance an engine of an aircraft by replacing some heavier parts with lighter ones, for instance. You wouldn't revamp an engine. The latter most often used to describe a process for making fixes in a social/business system, like government, company management, etc. You could, however, revamp a design of an engine, which often includes technological part (manufacturing).
Best Answer
Issue and concern, in the senses used here, are different, but can be used similarly. A concern is something to be concerned about, something that causes doubt or worry or similar. An issue is a topic for debate, or a problem that one might hope to solve. However, people don't usually think too much about the precise meaning of the words, they just use them in the patterns they are familiar with.
Either of them is acceptable here, and both fit the purpose you describe.