I think it is definitely popular elsewhere, especially functional languages. However, certain patterns associated with the Big Blue Book are not as applicable in dynamic languages and frameworks like Rails tend to lead people away from ideas of bounded context
However, the true thrust of DDD being ubiquitous language is certainly prevalent in dynamic languages. Rubyists especially takes a great deal of joy in constructing domain specific languages – think of how cucumber features end up looking, that’s as DDD as it gets!
Keep in mind, DDD is not a new idea at all, it was just repackaged in a way that got good uptake from C# and Java guys. Those same ideas are around elsewhere under different banners.