Ath-kethin
Elder Thing
That approach worked for TSR, why can't it work for WotC?Related to the actual topic, highly doubt WotC would actually completely abandon FR. It's just becoming one out of several popular settings in an increasing release schedule.
Unrelated: who do you think will buy WotC to save it from going under after it splits its fanbase for the umpteenth time?
My money's on Paizo, cause I like irony.