face2face for esa

hi everyone, on Tuesday my husband has to attend a face2face for his esa which he has been on for a few yrs now but I cannot find any info on how he will be treated and what questions etc they may ask, I am getting so worried about this assessment, in the past he has been granted esa in the support group but I am thinking they just want as many people as possible off esa and am worried things aren't going to go as I hope, he will be 65 in January and I don't no why they don't leave him alone now as his condition has got worse and all this is taking its toll on us both, any advice would be very much appreciated thank you.