I'm glad to see they're finally doing this, but what I find irritating about the Universe Within reprints is that the cards are
only in the slot of List cards as opposed to the main set. At that point, they might as well just be reprinted as a separate Secret Lair, but they won't because Wizards knows that slotting them into the main set will push more product. There's already only a 1 in 4 chance of getting a List card in a set booster. Divide that by the number of List cards there are (I still don't understand how these are curated or whether they change for each set) and it's still going to be a pretty rare occurrence to crack one of those.
Frankly, I'm in the camp that doesn't care for IP crossovers. Don't get me wrong, I love some of the cards themselves, but I don't like the fact that Wizards decided to go outside the universe to make them. When they were just Secret Lairs, I didn't care so much because it was only a few cards at a time in a special limited product so I didn't see them all that often. The 40K Commander decks started to push it, but were at least a completely separate opt-in product. When they started throwing Transformers cards into set boosters of Brothers' War, I think they went too far - and don't even get me started on the
entire set for Lord of the Rings. I won't complain about people playing the cards if they're format legal, but I won't be spending money on them or running them myself (even though my Karona deck would love a
Lucille). I still probably won't buy any "in universe" reprints, because now it's just Wizards double dipping on the
exact same product, save the art. It's almost the Double Feature treatment all over again, except on a much smaller scale with cards that will be far more expensive.