This length is one of the reasons that I am extremely suspicious (though not completely opposed to) the transferal of narrative techniques and patterns from other media to games, or at least their uncritical transfer. I think this uncritical transfer is the reason behind the existence of so many Forge microgames, which strive to compress the experience of gaming into the length of a long movie. I think that as a unique feature of roleplaying games vs. other media, we should not seek to reduce the length of our stories, to compress them into movie-length chunks, but rather to expand and broaden them to adequately fill this time.
Expanding them adequately involves preparation and planning to handle changes in tone, in detail, in the cast (both in game and out of game), in the sets and environments PCs encounter, many of which are similar to what creators in other media deal with, and are far more worthy ways to spend your time than figuring out how to mix up a bunch of tropes and cliches to avoid writing a backstory or setting (which is 90% of all "cinematic" techniques that I've ever seen anyone talk about for games).
I'm pretty hungover right now, so I'm just gonna let my readership know that over the next little while I'm planning to write some articles on a similar theme to the "Abolishing Parties" pieces but with specific emphasis on allowing you to run long, continuous games in consistent settings, regardless of changing membership of the group, the itch for "something different" etc.