I have a suggestion for new Guildhests. These are supposed to be like "introductions to mechanics" for new players, so I suggest new ones featuring mechanics who have been introduced through the years.
For example, one which would focus into certain "raid" mechs (though they appear in normal content as well), such as the "don't look" Eye attack. Seriously, I think many new players doesn't know so much about this thing when I go to raids like WoD.
Another Guildhest would focus into the use of the Duty Actions, so it can prepare players to those situations like with Lakshmi. And perhaps into the Active Time Maneuver mechanic as well.