What changes are gonna take now that Queen Elizabeth II has died?

We all know that Queen Elizabeth has died at the age of 96 last week, it is everywhere in the news. I was wondering what changes are going to take place in the palace and in the United Kingdom on the whole. Will King Philips be able to handle the events as a Queen did? Will prince William and Harry be able to accept Camilla as their queen? I know I have no connection to the UK and its people except that I buy Assignment Services from there but I am quite intrigued about this latest turn of events.