When a trigger happens, be able to automatically back fill data over a time period (like last 24 hours).
For example, trigger events analysis rule to back fill when a condition becomes true.
This would be made even more useful if you could chain a set of analyses to backfill for the period in a given order (where there are analyses affected by the result of the first)
YES! I love this idea.
I know they already have Analysis dependency resolution in 2016 R2 if you're using the Analysis management (or 'Management') plugin and have all dependent analyses selected. So maybe they could leverage that when/if they implement this feature.