Hello Ashwani Agrawal,
The 32 bits version can be renewed every couple of months. There is no public test for the 64-bits version. In both cases you may contact DSP Concepts for more information on available licenses.
In the case of Sensory you would also need to contact them directly for licensing details.
As for support for Debian 9 it is not currently implemented so you may either port the application yourself or you may contact NXP Professional Services to quote the porting job.
Regarding Hardware compatibility with MIPI Display the i.MX8M does support MIPI display.
I hope this information helps!
Regards,