This is related to the Trimble Connect Business license (which is part of a Penmap for Android subscription) but I do not believe that data will be deleted. Maybe the access to the data is limited.
In addition it pendent on the setup of your Trimble Connect projects.
With Trimble Connect Business, you are able to work with 1 to n Trimble Connect projects.
In this Trimble Connect project, you can have 1 to n Penmap projects.
If you Penmap for Android subscription expires, you will fall back to a Trimble Connect Personal license.
With a Trimble Connect Personal license, you can have one Trimble Connect project only.
Inside this project, you can have 1 to n Penmap projects up to 10 GB.
This will mean, if you have all Penmap project in one Trimble Connect project and the data is not more than 10GB you will have anyway no problem.
I will check with the Trimble Connect team, what happened if this is not the case.