At any rate, they both know it's something Premiere Clip users would like to have, but now it's officially posted.
If you'd like it too, vote it up!
The ability to speed up a clip of video in the timeline.
Slightly more difficult:
The ability to make a clip of video play in reverse (both -100% and sped up values in reverse)
Wicked hard. Hella awesome:
Speed ramps. Allow users to edit an overlay curve editor that would change the speed over time. a la TimeRemapping.
The speed change would not modify the original video, but would be applied in the XML. PremierPro would be able to read the sequence with the properly retimed clips.