According to several articles posted online (from reputable sources, such as PC Gamer and IGN), Activision has reopened Sierra's doors.

At the moment all we have are news reports and a teaser; a statement that "more will be shown" at Gamescom 2014, and Sierra's new website: http://www.sierra.com

This could mean the return of Sierra's most well-known and loved titles. We'll have to see what happens, but it's telling that Activision has allowed Jane Jensen to remake GK1 and pulled the King's Quest remake/reboot from TellTale Games.

If anyone here wants to discuss this, feel free to do so in this thread.

You could also go to The Sierra Help Pages message board[www.sierrahelp.com] or Facebook group[www.facebook.com].