If I want to know what's going to happen in 30 mins (and I've got time to think about it), I just have to de-zoom my radar image : it's dynamic.
If the CHMI says I will suffer a load and there's not much overlit traffic on my screen, then the traffic I still don't see will come either from UK, Belgium, Shannon, Shanwick, Spain, Bordeaux ACC or Paris ACC, depending on the sector I work on. We also have a dynamic list of scheduled flights for the next 30mins on the control position.
No real need to see them when they're not yet airborne. I reckon too much precision in prediction only gives you a very precise false
information.
PS : How do you say "gadget" in English ?