as for the 2nd expansion, wait and think for a long long while, horrible loot/exp/purple haze fest!
as for what stuff to get:
it depends on what you enjoy,
weird and wonderful tales? raids? lowbie stuff? epics?
the first list looks ok though,
Von/sands/madness stuff would really be my first guess.
i usually pick up a 1000 tp per life, if you plan on tr like that you'll own every pack out there in no time.