Algorand launched this week to much funfare, given USV's investment in the company
Algorand is a new blockchain platform that wants to compete with Ethereum mostly on the scalability side.
We've been seeing quite a lot of these recently. It's a though space to play in, given Ethereum's developer mind-share utter domination and its very active development, including sharding solutions and more offchain stuff like Plasma.
This being said, there could be a chance a newcomer platform is just so much better and takes it all.. as well as the chance that many different ones will get their own specific niches.
It will be nice to see all the alternatives when they launch and see who wins between Ethereum, Dfinity, Algorand, Radix, EOS, Rchain, AION, ICON, Aeternity, RSK, Enigma, etc.