Not an easy way, to my knowledge. But just thinking if there are work-arounds:
You can select one page and 'Save as Custom Page' so that you have layout page templates that can be used in other books. (Note: Custom Page Templates that you define are specific to the one Book size in which they were created! eg. 8x10in and not others. )
You can Duplicate a 'Saved Book Collection' in the Collections panel, then modify the 'Copy'.
With a 'Copy' of a book you can [Delete] all the photos from Grid View of the 'Saved Book Collection' and you preserve a full template of your pages. And then add 'new' photos to the Book Collection.
If you find that Text remains, MENU: Edit > Select all Text Cells > [Delete].
Regards. My System: Lr-Classic 12.3 Photoshop 24.3, ACR 15.3, Lightroom 6.3, Lr-iOS 8.0.8, Bridge 13.0.3, Windows-11.