Toy Army Workshop made great stuff, especially WWI vehicles and artillery pieces. I am glad to hear they will be re-entering production.
As far as K&C and the Pacific Theater, I think China/Burma would be wonderful. AVG Flying Tigers, Chindets, Merrill's Marauders, Bill Slim (the best Allied general of the war) and the 14th Army and, as you rightfully pointed out, GURKHAS! However, while I know a lot of us would buy the whole shooting match, I suspect that this would not have the broad appeal of the European Theater stuff with the big, glamorous tanks.