The block size limit is proposed to be increased to 8MB, with the Zcash community proposing the NU8 upgrade plan

Odaily Planet Daily News: Zcash community member ValarDragon proposed the NU8 upgrade plan, suggesting the upgrade target be set for early January 2027. The plan includes launching the Tachyon shielded pool, expanding transaction formats, increasing the maximum block size from 2MB to 8MB, and adding support for post-quantum cryptography transparent transaction opcodes; ValarDragon stated that combining Tachyon with larger block capacity is expected to achieve approximately 200 TPS of shielded transaction processing capability.