Seems like we all universally agree on one thing: add better tier rewards.

Adding richer spectre of loot to the loot table on HW bosses would also be blessed (badges as suggested).

Heroic barky boo would be nice plat tier reward for week 3.

Heroic blinky/gaze and other HW themed heroic pets dropping from bosses/boogie/oligarch.

Black ghost hunter sets dropping from bosses (weapons too).

3 valley crates required to craft massive nightmares would also be a nice addition as they're currently useless.

Those are my suggestions so far. If I think of anything else I'll let you know.