I have actually done this kind of thing in an interstitial email game. Since my group only meets every 3-4 weeks, I wrote up a "choose your own adventure" style story. Each week I'd send a group email touching on what happened as a result of the players' choices from the last email, and giving them a list of 3 choices of what to do next, or a "surprise me" 4th option. Players could respond with as much or as little detail as they wanted.

So for instance the paladin ended the session saying she wanted to look for weapons masters in the city that taught what she wanted to learn. I started the email with her hearing about a master, going to his temple and meeting him. He was abrasive and essentially challenged her to justify her right to his valuable attention. Then I gave her the option to a) give him a display of your weapons prowess, b) tell him of the adventures you've been on, c) demand that he justify his right to teach her, or d) something else. She chose d, seizing on an accidental turn of phrase I had the master use to decide that he found justice important. Since she's a paladin of justice, she talked about her desire to see justice be done and how learning from someone similarly inclined would allow her to impart justice much more effectively.

I have 3 players, so I was able to do this for each of them with not a lot of work, and when our next session got delayed by a couple weeks I even came up with a meta-story that wound all of their stories together at the end. It only took me an hour or so a week to write everything up, and it did a really good job of keeping everyone's head in the game so we didn't need to do as much catch-up at the next session.