I'm afraid Hasbro's IJ line will not have the longevity we all are hoping for. Stores over-ordered the initial two waves and are hesitant to order subsequent waves (TLC and TOD). If they would put figures on sale (3 for 2, 25% off, 2 for 1, etc), I'm sure they could clear out the backlog to make room for the new figures.
I will be happy if Hasbro does one wave for each film in 2009.
I assume Dietrich will be added to the ROTLA wave but just wasn't shown at Comic Con.
If they continue with 6 figures per wave, I'd like to see:
TOD:
Indy Tux
Lao Che
Willie (Club Obi-Wan outfit)
Lao Che's thug
Lao Che's son (skewered?)
Wu Han (Indy's friend who is killed)
(I'd love an Earl Weber/Dan Aykroyd figure, but I doubt that would happen unless the line lasted 5-6 years)
TLC:
Marcus Brody (he MUST be made before the line ends)
Donovan (also a "must make" figure)
Indy "No Ticket" scene or Professor Indy w/ removable hat
Elsa Venice outfit or Sallah with removable fez
Panama Hat (guy Indy takes Cross of Coronado from on ship)
Kazim (Brotherhood of Cruciform)
(Fedora would be a good choice but I'd rather see a new character-we can use a removable hat Indy to stand in for Fedora)
KOTCS:
Mac
Oxley
Indy professor (removable hat) or in jacket (with permanant hat)
Marion
Charles Stanforth (probably wouldn't be made as he is just a Brody stand-in) or Dovchenko in American outfit
Russian in American outfit or FBI agent (suit) or KGB agent (suit)
(Hasbro, please notice how there is no Mutt figure listed. Everyone who wants one has bought the jacket figure, if they really liked him they bought the shirt one too)