The post includes a list of proposals likely to be included in Metropolis.

One major plank is the concept of "abstraction", embodied in Ethereum Improvement Proposal 86, which aims to cut complexity in the system by shifting some of its foundational rules around security into contracts.

Among other items, Buterin touched on collaborative work being pursued by the ethereum and zcash teams, and indicated that developers are in the process of including a new programming language to complement Solidity, ethereum's smart contracting language.