It would be nice if we could display what the discovery process is doing in the Discovery Rules screen (discoveryconf.php). Something like a list of discovery rules that the process is currently working on, or a "last discovered, next discovery" timestamp.

This is especially useful in large environments where you may have several hundred discovery rules, each with 5 or more checks. Having some kind of guide or estimate to inform the administrator of when a check might be performed will assist in scheduling, workloads e.t.c.