If you would like to try and “Discover” on your own who the Daily Target is, based on Clues that will apparently be issued by game, then AVOID reading threads like this that could spoil it for you.
Let’s see if we can contain a single thread (such as this, marked Spoiler in Title) for an ongoing discussion each day of who people think the Target is.
DAY-1...

Theory that lot of ppl have said so far is that it might be Drax, on a NE path in first new Quest.