We’ve waited better time tracking about a year now. I think they are working with it, but there’s no any indicators to prove this. Also API is insufficient when getting data from tracked time. Excel export is one option, but we have lots tasks which contains time tracking data and exporting would be somebodys daily job to do.
Topics about time tracking gets typically less attention from crew and sometimes gets closed (Get time tracking sessions with API v2 - #6 by AlexSavchuk).