When will user chat rooms be back? Or will they?

Answer 1

No they'll never be back. If they do, they won't be used because it will be so heavily regulated and monitored it won't be fun. Thanks to the pervs that want to hunt 13 yr. olds and do nasty things. And thanks the lazy parents who don't train their kids properly and let them go online all hours of the night seducing grown men into illegal crap.