Other considerations: Laboratory Maniac and Monumental Corruption are on the maybeboard, though I wonder if they're too polarizing. Kaervek the Merciless has never been played as a commander; if he is not a useful reanimator target he goes on the chopping block. The two Izzet split cards also might get swapped out in a coming set.
Making small changes to try and help out damage-based decks and test out some cards from the last set.
Tishana's Tidebinder seems to have utility as a stifle on a body. Makeshift Munition was more expensive than anticipated and makes room for Grab the Reins. Hoping the act of treason as well as the fling are both useful modes.
Damage-doublers are coming in to help accelerate the game and give pinger decks some top-end with Fiendish Duo and Wound Reflection. Removing speculative card-advantage spells that never got cast in Ad Nauseam and Commune with Lava.
One Elixir is going away to make singleton happen and incidentally buff mill. Tarrian's Soulcleaver looks frightening so will try it out. & a lifegain artifact swapped out for a pinger artifact to put more life total pressure.
Nymris, Kaervek, and Nin are on the commander watchlist - hoping for compelling options in the coming releases.