I'm not quite sure what you do expect from dragoons. If they had some horse pistols they should be rather weak with it. In fact real dragoons imho were rather weak as cavalry and rather weak as infantry, what was the reason that they more sooner than later were just another kind of heavy cavalry using shock tactics in battle.

And I think the US dragoons were not realy dragoons but more or less cavalry. Afaik the first 4 regiments rarely had carbines in the beginning in 1776 and the following years. The reformed Continental Dragoons from 1778 were also more or less normal cavalry who fought on horseback. Same with the two regiments dragoons from 1812 to 1815. And when the first mounted regiment after the abandonement of cavalry in the year 1821 was formed in 1833 (1. US Dragoons) it was normal cavalry again. Maybe later on, after the dragoons were renamed "cavalry", they fought more often as dragoons than ever before but this would be beyond E:TW timeframe.

I hope CA will not waste much time with creating very powerful dragoons.