PR filed, work permit about to expire

[Canadaagain]

Hi everyone, I am in Canada on work permit. Just filed for PR under express entry category last week. My work permit is about to expire next month, don't think the PR will be confirmed by that time. What are my options? Do I need to extend my work permit, visa or will be allowed to continue to work under implied status? If in case of an emergency, I have to go back to India will I be allowed to enter back to Canada if I just extend my visa?

Thanks for the help, you people are amazing.