I said this in another thread, but the delay in Eureka likely also means the iLVL steps are going to be different, and we may even skip a "step" in the long run from missing a cycle.

But, that's blind speculation.

For all we know it may be similar to Diadem 1.0 and we do activities for Pink drops that having additional quests added to get progressively beefier options, that we can like, meld or something.