Yoink was as affectionate as he was when we first met him (and was the reason we adopted him). If I sat on the floor with him he would climb into my lap and then rub his face against mine. I got many kitty kisses on my nose. We decided to just let him explore the house on his own while we went out to dinner. When we got back things were still relatively calm. Everyone was watching the others with a weary eye. There was the occasional hiss or growl, perhaps a swipe, but there was no overt fighting. We then introduced Mesa to the newcomer. He was pretty indifferent although he did give me a look as if to say, "Another one?!? Jeez!"
Hopefully the shape of things to come will be dictated by what happened at around 3am. I woke up to find Yoink sleeping between mine and Kitty's heads, Fling flopped between our bodies, and Boot asleep between my legs. Less than 12 hours and everyone was asleep in the same bed! Hopefully things will continue to settle down. Pics of Yoink to come!