Hello Roy,
I´m sorry for the late response, but for the next time and for better visibility, please use Kinetis Software Development Kit
Few points to your question:
No - we do not have any public road map. We can only confirm if we see support/develop of any MCU in future plan.
Now, is available KSDK 1.2. and there is huge support of KLx family.

If you try to migrate your projects from older KSDK to KSDK1.2 I´m attaching you the procedure - how to migrate.
I hope it helps you,
Best Regards,
Iva