I'm loving the types of campaign models you're all talking about! It seems much more like a good fantasy novel where you would get a cliffhanger with a group or character at the end of the chapter, and then you'd have to wait a while to pick back up with the action, with the separate arcs/timelines all converging at one or more points. Fantastic!
It makes for a great novel, but somehow, as a failing of my own, I've just never thought of ttrpgs as being able to run this way. Of course, this sort of campaign requires a lot of scheduling, responsibility, and...well, friends that play rpgs. So, I couldn't do it right now even if I wanted to. Drats!
Perhaps I could have my current 2 players start a group of pcs in a different location and then tie them together later? Not sure if they'd be down for it, but I'd like to give it a shot.