Nintex for SharePoint 2016 Timetable End-Of-Life

Couple of years ago we’ve developed Nintex solutions for our customer on SharePoint 2016. 
Customer decided migrate the solution to SAP.

My account on Nintex Partner portal was disabled but I also hadn’t delegated access to our customer.  

Each year, customer has to buy Combined license for Nintex Workflows and Forms, in June. 

So, what will be the TimeTable for EndOfLife (EOL) cycle?
June 2026 - Customer will buy combined license for 1 year
July 2026 - SP2016 Microsoft EOL, but Nintex still provides security updates
June 2027 - Customer will buy combined license for 1 year
July 2027 - Nintex 2016 EOL

I am asking generally> although, there will be no support for Nintex 2016 products - will Nintex sell another 1 year licenses each year? Because I’m afraid, that it’ll take long time to migrate to SAP...