I'm afraid you're right. It's too bad...I could see him learning some medicine and agriculture from Herschel, jotting everything down in his notebook.
Above all, I want to see Daryl, Rick, and Herschel survive, followed closely by Glenn and Maggie, and Michonne. Andrea? Meh.
Milton is a smart guy and he would get my “stay” vote in the zombie apocalypse. He’s not a builder or a fighter but he he is a planner and studier.
Once the immediate security and food concerns are taken care of, a guy like that could really shine.