Hey there Eric, currrently the hack has be updated to have the listed Phy/Spec split, the majority of 386 available with altered movesets and stats(the curently released patch 1.4 does not contain the first Fossils, Legendary Birds, Beasts, Mewtwo, Unown, Celebi, Jirachi, or the event tickets required to reach legendaries on the islands, as well as the two un-chosen Hoenn Starters), evolution methods have been added to make use of new items as a way of circumventing trading requirements, Gym leaders hand out 3(might be more, its been a while since I looked) copies of their TM, relocation of the Good and Super Rod for earlier fishing fun, additional battle item hand outs such as the Choice Band and Bright Powder, and the revamping of the majority of non-frontier trainer teams.
Currently, I have a working script that accommodates the Eon Ticket, Old Sea Map, Aurora Ticket, and Mystic Ticket required for in-game events. I also found an ability error with Tyranitar, so I quick-fixed that, and am considering the changing of Shadow Tag on Sableye, given how annoying it was to proceed through both Sky Pillar and Victory Road with it.
Aside from that, I may add new maps to include the remaining legends, and perhaps fossil handouts. Before I begin to consider graphical changes, these will occur.