Hi.
i.MX8 QuadXPlus chipset has been developed, so please contact us to know the schedule available.
Please share if you have the latest (2020year) Roadmap related to i.MX8 QuadXPlus chipset.
Have a nice day.
I do not have, but found this https://community.nxp.com/docs/DOC-345825 hope this can do help for you.