Increasing the number of scenarios is presumably in everyones interest.
Having a competition and getting people to submit fleshed out and designed scenarios could be one way for FFG to go looking for ideas and full details that could be relatively quick to add new stories.
There could be options too - like:
Basic Box (only using the basic components)
The more the merrier ( Using as many expansions etc)
A short story
and so on.
Hey prizes being credit on the app for story design and Credit for FFG goods would be a fine incentive for many I assume?
Harnessing the community has always been a good way to get a content.