In an odd move for a committed Republican
I think that Charles could be the breath of fresh air the Monarchy needs. We know what he's like because he has had opinions on a lot of things, and talks about them. He won't be subject to the fawning attention from the "because he's been around all my life" brigade.
I seem to remember reading that there wasn't much enthusiasm for Edward VII after Victoria's long reign, but he was a pretty good King and the Edwardian era, although short, was quite lively and forward thinking.
Come on Charles, show us what you're made of. He'll have to dump the over the top uniforms, though.