J_B wrote:What are the chances the queen skips Charles altogether and William becomes the next king? Is it up to her and can she do that?
The Queen has only little to do with that. (If anything at all.)
There must be changes done to the succession law ( which Parliament had originally imposed upon an unwilling monarchy).
These changes aren't quite easily to be done, since the English monarch isn't only queen/king in the United Kingdom of Great Britain and Northern Ireland but head of state in a couple of Commonwealth countries as well.
Changin the succession for leaving one generation out have happened in other dynasties but only to (officially) medical or similar reasons which, on the other hand, were (and are) included in the various successions laws.
Might be, this will happen again.