Do older champions that aren't reworked ever receive updated Voicelines?

This came to notice rather randomly, in my opinion. Voicelines are incredibly awesome and give the champion that ingame depth that makes them so unique which is why i love all the work put into it. But sometimes i feel rather dissapointed in the case where new champions are released in the sense that most new specific quotes only go one way.

For example when Warwick was reworked. The champion interactions from him to others have changed, but the interactions others give to him are the same, as far as i am concerned. and in cases like with camille where there could be some interesting interactions i find myself cringing with this shortcoming replacement that is a Taunt response.

Maybe i am wrong and just did not pay enough attention, but incase that i do strike a point somewhere, i would very much appreciate it if riot would keep track of some champion-voicelines and update them here and there. (And no, this isn't an obligatory rammus joke)