There is a bunch of work happening with Ethereum to address the scalability problem, namely Proof of Stake and Sharding as well as complimentary systems like Ra

There is a bunch of work happening with Ethereum to address the scalability problem, namely Proof of Stake and Sharding as well as complimentary systems like Raiden that use the main blockchain for dispute resolution and not every payment. I expect 2018 to be a busy year for Ethereum development!