Hi Steen,
First of all, PowerBuilder 2018 is delayed. We have recently updated the roadmap page, and are sending emails to all customers, to notify everyone of this schedule change.
However, we do not plan to delay it for 6 months. In fact, the feature development has already been completed in house. Very soon we will start the beta testing program.
You must have noticed that we state "Q2, 2019" for the PB 2018 GA on the roadmap. There are several reasons: (1) Considering that the c# development feature added in this version is a new subject for most PB users, we want to give more time for people to learn and try the feature in their beta testing. (2) We shall factor in the time needed for implementing P0/P1 feedbacks collected during the beta cycle. (3) We target the delivery to be in Spring.
More news will be announced on the website. Thanks for your interest. Please stay tuned!
Best regards...Julie