It may or may not happen that the next TDM version will use one or the other of these new features in PWC 10.4, but most likely TDM will not leverage them all. So please be more specific about what exactly you want/need, then someone from the Product Management team at Informatica can respond to your question.
My 2 cents.
Currently we don't a TDM version supported with PWC 10.4. The TDM version 10.4 will be supported with powercenter with 10.4 and is tentatively to be released by end of 1st quarter of 2019.