I have mixed feelings about this announcement regarding aspects of magic's direction in the future. This is a link to the announcement for those not in the loop.
So we are getting crossover Magic cards. I have seen many a homage paid to other sets of lore by using custom Magic cards and day dreamed about that sort of thing myself plenty. It almost feels natural framing everything I encounter in a MtG context! I was averse to the Walking Dead experiment as it was done in the Secret Lair. The flavour itself didn't bother me that much. There are plenty of awkward flavours in the game. I am certainly interested to see these things done by Wizards. I am not overly worried about the flavour being disruptive, if anything the style is more likely to be jarring. If the Universes Beyond cards follow in the general aesthetic and art style as Magic then things will mostly blend in fine. We already have Space Marine suits and miniguns!