This could change things from January 2019: Java Future Release Notices
Needless to say the link for Oracle Java SE Support Roadmap gives:http://www.oracle.com/technetwork/java/eol-135779.html
I haven't gone through this in detail yet, but I have picked up:
What is the cost of a Java SE Subscription?
Desktop pricing is $2.50 per user per month, or lower with tiered volume discounts. Processor pricing for use on Servers and/or Cloud deployments is $25.00 per month or lower. More information is provided in a separate section below.