I would not count Meisha out completely. She's shown she has a good chin, good cardio, and decent wrestling/takedowns. Her best chance would be to play it just like the Holm fight: play defensively and time takedowns. Survive until the championship rounds and then try to grind out Cyborg on the ground/cage. I could see Cyborg punching herself out and slowing down in the championship rounds (especially at 135, I think she would be depleted).
On their feet, Meisha gets starched like your grandmother's linens. Cyborg is stronger, more experienced, and more-than-likely takes Tate's head clean off especially if the fights at 140+.