There's already a long list of blueprints registered for Oneiric. How do I know whether or not certain blueprints I'd like to follow will be discussed at the UDS?
That list of blueprints are ones that have been proposed for "Oneiric" the series in general. You want this list, as it's the approved list of topics for UDS:
Prior to UDS this list grows, so I bookmark the page. You can subscribe to the specific blueprint if you want to follow along, and check the schedule to see when it's actually going to happen if you want to participate remotely.