Oh my... This could be a long list!
(yes, I realize the first two on my list are wheelguns)
1. S&W K-Frame, 5-Shot, .41 Special - 210gr LSWC @1050 fps
2. S&W K-Frame, Airweight, 6 or 7 shot, .327 Magnum, 4", 5" or 6" barrel
3. S&W resurrects the metal frame, single stack 39xx series
4. 1896 Broomhandle Mauser type in: .22LR, .22Mag, 9mm, .45ACP
5. A strong, roller-block delayed action 10mm pistol with a crisp 1911-like trigger
6. A decent, small .380 pistol like the Colt Gov't/Mustang or Remington 51
7. Colt Lightweight DAO Commander 9mm/.45 with a trigger as good as the Kahr K9/K40 series
8. A .45ACP P.08 Luger. 'Nuff said there.
9. CZ 75 P-01 in .45 ACP. (Ditto)
10. A very lightweight Ruger MkII that's smaller, 7-8 shots, with a quick change 3" barrel that can be replaced with a 6" or 8" "target" barrel. Excellent as a survival gun.
11. Lightweight Colt Gov't in both 9mm and .45 ACP (is it out yet?)
12. An new M1 carbine (or similar concept) that actually works well. Bonus points if it's also available chambered for .22LR, .22 Mag, .327 Federal Mag, .41/.44 Mag or .45 Colt!
At the 2010 SHOT show, Colt had a lightweight Gov't model and a DAO Gov't model... but IIRC they had not yet made a lighweight-DAO Gov't model.