What specifics are known of the autofocus capabilities for RED cameras, both with RED lenses and when using other lenses (Canon, Nikon) through adaptors?
No specifics are known yet. The current RED ONE camera has no autofocus capability at all. The announced specs include new FF35 RED-mount lenses with autofocus (and stabilized) functionality, which indicates that the FF35 cameras will autofocus with those lenses, at least. At this early stage, RED has specifically declined to comment on whether the Canon and Nikon mounts will include autofocus capability.
Also, do RED cameras use progressive scan (with the resulting wobbly effects with certain combinations of camera and subject motion), or do they detect all pixels of a frame simultaneously?
Most people use the term "rolling shutter" in favor of "progressive scan" (which has other meanings). Not all rolling shutters are the same. The speed of the rolling shutter is measured by the read-reset time. Some are very slow, which makes wobble very obvious, such as in the D90. Others are medium speed, such as the HV30 and EX1, where many people do not notice skew, but others do. Then there are other cameras where the read-reset is very fast, such as the RED ONE, so that skew is not a problem except in certain circumstances such as with strobe lights. After that, there is film-like skew. This is very fast, but the skew is still there and can cause problems. After that there "global shutter", where there is absolutely no skew at all. Some cameras do this now (Vision Research, but not the cine Phantoms), but it changes the look of the moving image in a way that is not pleasing: so film-like read-reset speed is most highly desired. RED has announced that their read-reset will be better in all the new cameras, but only the Monstro-based ones will match film in this regard.