I have just read through the Q/A and worried about the farm-able state of Turn 1 to 5.
If Turn 1 - 5 will be on DF with selectable turn, at least make the loot a weekly lock like CT otherwise no one will never ever join CT. That is like killing your old contents.
Also the lock should be entirely through turn 1 to 5, else people will just farm and get 4 loots per week.