You will want for nothing in RI. Here's an example of loot that literally "rotted" (no one bid on them) and were being sold for member profits.
DZ Raids could happen on literally any day that the DZ unlocks on... At ~8PM Eastern Time... *if* there are no open world targets up at that time. DZ Raids come second to open world targets. If we are in a DZ Raid it is not uncommon for us to literally leave mid-instance raid to go hit an open world target. See this video for an example: