not until I hear it from the horse
From a business point of view, ditching the 990 doesn't make much sense. That would leave a huge gap between the 690 single and the 1190 twin. This is handing over an entire market to BMW, Triumph and the rest of the 700-1000 cc. The 1190 is not for the poser or a noob, it's an upgrade. I feel the gap between the 690 and 1190 is to much and to popular for KTM to ignore.
I think, hope, that the intro of the 1190 is just an addition to a full line of twin adventure bikes.
"Don't give up, look up"