Actually... since CK2 is ported to Linux and Sengoku is (supposed to be) based on the CK2 engine... this isn't a very strange idea nor request. Though I doubt Paradox will spend time on it unfortunately.
I make no promises, but we'll probably never do a native linux or osx port of Sengoku. Sengoku is based on an older version of Clausewitz that is from before we had OSX/Linux support so porting is far from trivial.