This is a funny question to answer. Technically, these types of Gore-Tex pants will keep you warm because they are resistant to various weather conditions (water, wind, etc.). Top this with the ability to wear pants underneath them, and you will not need to worry about getting cold (depending on the weather that you travel in). However, if you are talking in purely technical terms, there are no design features that will enhance the warmth. You could argue that being resistant to the wind will do so, but this is referring to any insulation properties inside (which are non-existent in Gore-Tex technology).
So, if you are traversing in extremely cold conditions and do not have any apparel underneath the pants, chances are you are going to get cold and they will not keep you warm. The answers to this question can contradict themselves, so just know that there is no insulation technology implemented.