My understanding is that the authors of BIP 360 anticipate that a post-quantum signature scheme will be added to Tapscript by redefining an OP_SUCCESS opcode next to the introduction of P2MR.
My understanding is that the authors of BIP 360 anticipate that a post-quantum signature scheme will be added to Tapscript by redefining an OP_SUCCESS opcode next to the introduction of P2MR.