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.
i wasn't sure i liked it at first but after seeing it i really like it, it really flows and is easy to understand. i just really liked "instanTx" and hated to see it go, same with "Darkcoin".
Yeah, the new terms will be easier to understand until the time comes that we don't need them anymore. With Evolution when it's done, every transaction will be instant and private by default.