Asimov estate authorises "I, Robot" sequels

"The estate of legendary science fiction author Isaac Asimov, who passed away in 1992, has authorised a trilogy of sequels to his seminal I, Robot short story series, to be written by fantasy author Mickey Zucker Reichert."

http://www.keepingthedoor.com/2009/10/30/asimov-estate-authorises-i-robot-sequels/

Er - why??? Can't we just enjoy the original stories, and the sequels that Asimov himself wrote?