I looked through cards released for Phyrexia: All Will Be One. Some cards, like cutthroat centurion and vat of rebirth don't seem any better than Nantuko husk and blood fountain. A few cards did make the maybe board, such as annihilating glare being very similar to angelic purge (although it would replace grim bounty and I don't think that's necessary) and staff of the story teller helping tokens (although I like mesa sanctuary's role in the cube more). Tyvar's stand was also added as it is a nice protection spell that can serve as a pump spell, although green's focus on enchantments here means there is less traditional combat tricks.
The big change to the maybe board is blue. Blue's side of the artifact deck is tokens with a focus on clues. This allows cute cards like daring investigator plus rise and shine to have a home here. However, this means the bounce card ends up being turn into a pumpkin for the artifact token (plus the card draw for the spellslinging deck), and it feels awkward. I like Malcator's watchers for being evasive, cheap, vigilant, and an artifact, but it feels awkward to slot in. Does it replace the investigator at the 2 spot and then feel close in identity to thought monitor, or does it replace thought monitor and just add to 2 drops? And chrome prowler as a flash artifact creature is nice, but I had issue finding spot for it. All of this reinforces an idea I've had for a while: blue artifact needs to be reexamined. And if I am to do that, I don't want to do it for a set update. Don't want to be too biased toward the new cards.