Khan is no stationary target like Alexander, shot Paulie or Broner. And porters no CPer. Call me crazy, but unless porter simply mauls Khan with his 165lbs.....I got Khan beating porter by wide decision. Porter had trouble with Brooks speed and hugging. Khan is twice as quick to the punch, and hugs more than a first time momma.
Khan does struggle to keep pressure fighters at bay though. Peterson walked him down with ease. Don't think he would keep porter at bay. That's a tough fight for amir.
I'm sure you know this, but Khan isn't the only one. Brook is a world title holder and he has been defending his title against abysmal opponents with the like Jo Jo Jan, Frakie Gavin. Sure, Brook wanted Khan just like Khan wanted Mayweather but there are many other credible fights Brook could be going after. Instead, his next opponent is likely going to be just as bad as his last one. Thurman's last 4 opponents are no better if not worse than Khan's. In fact, Thurman just fought and looked bad against Collazo whom Khan easily beat. Likewise, you have guys like Danny Garcia fighting shot fighters and nobodies.
Most likely it will be Guerrero. Now that the Mayweather fight is not happening, Khan has absolutely no excuse for ducking any of the top guys.
Khan's chin wants no part of Thurman or anyone with even moderate power. Khan is content calling out people then fighting the person that provides the least resistance.
In line for a pension? I don't really care to see him in (or near, commentating or whatnot) a ring again.