What is the future of the Flux query language now that SQL support is added? I've observed that on Grafana.com, most InfluxDB dashboards being shared are all InfluxQL based, and Flux-based dashboards are virtually non-existant.

Personally, if we use InfluxDB in combination with Grafana, the InfluxQL language was quite easy to use in terms of discoverability. With Flux, there's quite a steep learning curve. And mostly clicking something together in the Influx Query builder and copy/pasting it in Grafana, not a fan, although it does work fine.