It's a real possibility. So sayeth John Dvorak.
I'm a PC guy but I will be sad to see the Mac go.
Apple is the master of radical pivots...
A very memorable pivot came when the company dropped the Apple II line of machines with an event called Apple II Forever. While it extolled the venerable machine with a fancy new model, it marked the end of the system.
What I'm sensing is that like the old Apple II (forever), the Mac will be phased out and the whole line will be replaced by iPads.
I'm a PC guy but I will be sad to see the Mac go.