They are keeping the girls longer, and still have not made cuts, as of July 16. I think they are giving these ladies every opportunity to make the team since they don’t need to create drama for TV.
Because the stadium is closed a good part of August, I think TC will end earlier so they can get the final team into AT&T in July to prepare for their first game,
Both K&J have taken vacation during TC. However, they may have taken it in the past, as the show made it look like they were there every minute of the time.