Right now, EventStreams allows accessing only one topic, i.e.: https://stream.wikimedia.org/v2/stream/revision-create
It would be nice if there would be a possibility of integrating several topics, e.g.:
https://stream.wikimedia.org/v2/stream/revision-create,page-delete,page-undelete
Since under the hood EventStreams already merges topics from eqiad and codfw, it could also merge other topics into one stream possibly. This would make creating multi-topic clients much easier.