While land-sacrifice decks are going to get a popularity boost, this archetype is definitely niche within Commander
The Flip Walkers Ajani, Nacatl Pariah / Ajani, Nacatl Avenger and Grist, Voracious Larva / Grist, the Plague Swarm feel like they can see Modern play, perhaps slotting into Zoo and Yawgmoth, respectively, or reviving some aggro or graveyard archetypes
Kiki-Jiki is notorious for being part of two-card combos that can flood the board with infinite (and hasty) threats
Chart shows the price of Pikachu VMAX #188 at the end of each month going back as long as we have tracked the item.
If you plan not to follow the humans tribal line and focus even more on counters, consider making the following changes as well: Remove Heron's Grace Champion, Herald of War, Kyler, Sigardian Emissary, and Dearly Departed