After May 15th, you can still accept the updates although WhatsApps rules regarding inactive users will apply. Those rules say that after 120 days of inactivity, accounts are usually deleted. And if you do decide to delete your WhatsApp account, there is a price to pay. The WhatsApp Help Center says, "If you’d like to delete your account on Android, iPhone, or KaiOS, we hope you reconsider. It is something we cannot reverse as it erases your message history, removes you from all of your WhatsApp groups, and deletes your WhatsApp backups."
WhatsApp once described end-to-end encryption in this way: "Strong encryption acts like an unbreakable digital lock that keeps the information you send over WhatsApp secure, helping protect you from hackers and criminals. Messages are only kept on your phone, and no one in between can read your messages or listen to your calls, not even us. Your private conversations stay between you."
The misplaced belief that Facebook was getting to see encrypted messages between WhatsApp users led a number of subscribers to make the decision to leave WhatsApp for rival messaging apps like Signal and Telegram. But had users understood that their personal messages remain encrypted, the rush for the exits would not have happened. Talking about the confusion and the mistaken beliefs about Facebook, a WhatsApp spokesman said, "We’ve heard from so many people how much confusion there is around our recent update. There’s been a lot of misinformation causing concern and we want to help everyone understand our principles and the facts." So in the weeks leading up to the May 15th deadline, WhatsApp is going to post an in-app banner that will allow users to re-read about the new privacy update so that they will accept the changes allowing them to continue using the app. An image of that banner accompanies this article.