Quote from NoHeavenNoHellPosting 8 man queue decklists......
This is seriously just one step forward to standard DEs eliminated completely.
DEs being gone would probably be a good thing for MTGO, assuming they replaced them with the rolling tournaments online-CCGs seem to be moving towards.
The Arena in Hearthstone and the Jackpot tournaments in Duels of the Champions spring to mind. You enter, play matches as you can throughout a set period (24 hours usually) and collect your prize at the end. No need to block off 4+ hours for a tournament in a row. This is online and digital, we don't need to have the same tournament structure restrictions as paper for every event.