I am rooting for a DLC that includes the Texas Revolution, the Mexican War, and some of the Indian Wars (probably need a more appropriate name for those though). I like the idea of the Mexican War as a tutorial. Creo que nuestros amigos Mexicanos disfrutarían la oportunidad a mantener su tercer de los Estados Unidos

. (Lo siento por mi escuela primaria Español, yo soy de Indiana.) The expanded West and Mexico on the new map seem to be almost pre-designed to accommodate these conflicts.
I also think the game would really benefit from smaller scenarios like the one you describe: my only criticism of CW2 is that the Grand Campaigns push the envelope on how big and complex a game can be and still be playable. (My wife already refers to herself as old Mrs. Martin; telling her that the last Confederate Widow was probably actually Maudie Hopkins would not help my case!). Hopefully Bloody Roads South will help with that: payday on Thursday!
I have a basic OOB, some artwork, a timeline, a list of leaders, an 1836 map and some initial game-design thoughts for the Texas Revolution if anyone who is interested wants to work on one with me. (I have no experience at modding and scenario creation, though I have read a lot about how to do it. Are the XL files out yet?) I find myself with a lot of time on my hands until May.