I think this is a terrible idea. They're making so many enormous changes and additions in the next packet, from the math fixes, the new skill system, multiclassing, saving throws, spell save DCs, etc., how can they possibly think it would be a good idea to wrap this up now? They should see how people react to all of those changes in the next packet before deciding anything.
They aren't wrapping anything up. They are delivering one final public packet for us to test, and presumably to fill out the surveys for just like always. No different than any previous packet. Only difference is that there won't be another packet after that.