I'm going to call failure on this from the get go.

We have enough items/points to collect as is for the battlefields. Add a different tier of orbs to enter the upgraded. This isn't hard.

Start announcing the rewards, unless it's something relevant like side grades to Hurkan. Yumcax, Delve, Skirmish 2.0 or w/e items come later we don't need our monthly fees wasted on this.