Please consider clarifying what do you mean by changing identity for the business.

Full-Chain Membership Proofs (FCMP), as a concept, is a replacement for rings within the Monero protocol. … This means every input goes from an immediate anonymity set of 16 to 100,000,000.

https://ccs.getmonero.org/proposals/fcmp++-development.html shows “Completed 0 of 7 milestones” at my end.