I think in the end there are two approaches to this:
The “comfy” approach: A channel where people can just sit back, relax and enjoy narrative being played out in front of them. The obvious setback is the fact that the linearity of the tale might alienate those who weren’t there from the start, hence the suggestions to either use something short/create stories just for the occasion.
The “edgy” approach: A channel where people can have a direct impact on the story, that promotes user engagement and collective decision making.
(And yes, you can obviously take elements from each of them and make something different)
We’re dealing with assumptions here, but I personally would rather play the second option than watch the first, and I think that’s true for the majority of people out there. Still, I don’t undermine the value a “comfy” approach could have, with a good community centered around it. I just think the other option is more fun and “marketable”.
Some people narrating text games without the players having a say might not call for as much attention as "INTERACTIVE FICTION COMPANY PROMOTES MIX OF “CYOA” AND "TWITCH PLAYS POKÉMON “AND YOU HAVE TO PLAY OR MELISSA WILL MARRY ADAM” Buzzfeed-like headline.
Also, I hate the kind of ideas that just demand a lot of work from people who didn’t exactly asked for those suggestions in the first place, but we have a community of creative people here and I think those things are worth it, so I’ll allow myself to go wild:
1 - Twitch-Specific Content:
I mentioned that there are some generalizations that can be done when describing the twitch audience, and I think they are true. A small game that tries to plays on those elements could be a good thing. This could be applied, for example, on a game about “species building”, similar to Spore.
Imagine a pool of playings crafting the story of an organism evolving across millions of years through a sequence of decisions based on things like feeding behaviour, habitat and interactions with other species. What kind of evolutionary traits would come up based on their decisions on things like feeding behaviour and habitat? What kind of species would evolve from that? What conflicts would arise in its struggle for survival?
But things don’t have to be so weird. Small and simple narratives about someone doing something somewhere could be just as compelling, if not more. What matters, IMHO, is projecting the sense of shared experience, of being part of something that is unfolding.
Players will care about something if they are part of it, especially if they are doing it collectively. Integration is the key in this platform. There are ways to do that using commands from the chat, donation buttons votes, etc.
2 - Revenue from Game Sales/Using Popular Streamers:
I think that’s one of the best counter argument that can be made against new IPs being created for Twitch(Point 1), but It’s a valid point nonetheless. When you play something, you can sell it through Twitch, basically. I don’t think that is true to all games and all platforms of sales yet, but it might be one day.
I’m mentioning it because I think that eCelebrities are really the best way to promote “small” games nowadays, and there might be some popular streamer out there who would certainly like some type of deal to play CoG games for 5% of each sale through Twitch. And those people are really the best way to promote a game on Twitch without having to deal with all the logistics of streaming constantly.