there is a huge sw ecosystem that have to possibly built up. I wrote by example, for Telegram platform, a sw to manece many different bots at time: http://www.github.com/solyaris/BOTServer
(think about a possible ecommerce marketplace scenario, where a moltitude of shop (bots) have to be managed by a single server…)
Another topic is what I call Dialog Engine, see my project proposal: http://softwarerecs.stackexchange.com/questions/28426/open-source-dialog-system-natural-language-processing-engine
so yes: “meta bots” is an interesting trendy realm!