Here's some news on Warner's yet-to-be-named streaming service that will supposedly include Criterion's library:
https://variety.com/2018/biz/news/warnermedia-streaming-platform-movies-three-tiers-1203051216/
I'd be willing to bet that you'll get access to Criterion titles at the most...
Criterion has just made a major announcement regarding their NEW streaming service, to go live in Spring 2019:
NEWSLETTER - NOVEMBER 16, 2018
We are incredibly touched and encouraged by the flood of support we’ve been receiving since the announcement that FilmStruck will be shutting down on...