Looks like EA/Maxis has officially announced the last (?) Sims 2 Stuff Pack.
Entitled "Mansion & Garden Stuff", rather than more clothes (like most SPs have basically been an excuse for) this one is all about new garden & build mode options.
Snooty Sims links to some screen shots here:
http://www.snootysims.com/mansionindex.php?id=mansion
Actually looks really nice IMHO & seems like a rather classy way to "end" the Sims 2 series.
-ZW