(Replied to your other post before I saw this one. Figured I'd give the same answer here, in case others didn't get a chance to see my original reply.)
The SQL exports won't be made available, sorry. Data Reporter, at least, will not run on a 4.2.2 (or earlier) instance--it relies on functionality that did not exist prior to the 4.2.3 release.
That said, you can always test out the new apps by requesting a workspace on apex.oracle.com, of course.
We did implement a fair number of changes to all of the other packaged apps (naturally, some were more impacted than others). One of the most significant changes to P-Track is the ability to tag action items and milestones, in addition to whole projects.