What are different ways these virtual worlds can be used?

What are different ways these virtual worlds can be used? What are the pros and cons? Be specific. How do virtual worlds foster creativity? What do you think the future of virtual worlds will look like?
Cite at least 2 of the assigned readings.
READINGS:
1)The virtual world moves into the classroom Posted by Joe Earle | Sep 14, 2018 https://www.reporternewspapers.net/2018/09/14/the-virtual-world-moves-into-the-classroom/

2)After Second Life, Can Virtual Worlds Get A Reboot. April 30, 2013. http://www.forbes.com/sites/dianemehta/2013/04/30/after-second-life-can-virtual-worlds-get-a-reboot/