I just posted something that runs in the same vein as @tokenbb has finally introduced some of what you talk of.
I predict that appliation IDs will be used and attached on-the-fly to Steem seats. This gives many new ways for applications and users alike as well as new levels of control and types of efficiencies.
It is getting exciting :D
edit: link to the tokenbb post
https://steemit.com/tokenbb/@tokenbb/tokenbb-a-link-between-steem-and-external-communities