I'll try to keep this as concise as possible.
I think the ability to play 1 game or 1 series at a time, live, with all managerial capabilities would be sweet. Everything as close to the same as the game is now when run through leagues, except you can jump start a game when ever you and a competitor wish to. No different than you would at home in person, except I don't picture a bunch of 30-50yr old men touting their strat cards around town with them. Just like checkers online, you open a table and play the game.
Not sure how big an under taking a project like this would be, I'm not much into the details of what it would take to set this type of thing up.
Whether you draft a team for each time you play, or have an auto draft in accordance with mutually agreed parameters (cap, DH etc), or even draft your own team for this specific type of game play and just go head to head with a competitors team regardless. Make real time in game decisions that HAL would normally make for you.
As fun as the current set up is, and it is great, once you get a season under way waiting around till 12:30am to see results can be a bit eh. Running multiple teams at a time can be a cumbersome way to get your strat fix in as well. Maybe a separate manager rating for this type of approach would be fitting, maybe tie it into the current rating system.
Lots of ways to go with it, I'm just kind of throwing it out there from the perspective of someone who enjoys the game and sometimes wishes he could just log in and play a quick series.
Not sure if it has ever been brought up before but curious as to thoughts on it?