With regards to PrivacyProtect (Darksend) and InstantX i think in the end it is getting rebranded to PrivateSend & InstantSend
Confirmed. This is a proud day for me, as my suggestion to streamline the Dash wallet with the descriptive terms PrivateSend and InstantSend has been accepted and implemented:

This will make it much easier for newbs to understand the purpose of each function.