they don't need to have a strong presence in the expansion, this game is a RPG too, give us choices and we build up our own story with RP
you don't have to play then, but to have the option is always good, with this logic of playing major role we should gt ride of 60% of the playable races
after playing D&D with some drakonid and tieflings friends i think it would be fucking awesome to have then ingame,