Since this is a user forum, you won't reach the people making content decisions by posting here. Your best bet is to use
Rate Us & Provide Suggestions under PD 17/365's
File menu. PD18 will likely be out in a couple of months and it may have some of the themes you're looking for.
If you're having problems with 4K clips with the Android app, you can contact Cyberlink tech support or start a new thread in the PD Mobile forum. We'll need many more details to help you with a tech problem, so plan on uploading a sample clip to a cloud folder so that others can test it on their systems.