Hello wishimac,
Welcome to Affinity Forums :)
The Crop Tool was already improved in the latest betas.
It's already possible to define custom sizes and ratios and save/delete presets.
What did you find frustrating? Is there anything you think should be added?
With the addition of the DAM functionality, Photo will hopefully go a long way in covering a workflow that starts with browsing and import. But that leaves open the need for Print Persona to provide at least the printing capabilities of the Lr Print Module. We need to be able to define our paper and import corresponding ICC profiles for the combination of printer and paper. We need to be able to setup contact sheets that support layouts of multiple images on one page. We also need to define how the mismatch between color gamuts will be handled. Typically we shoot and process in ProPhoto or Adobe RGB and print locally in sRGB. While I will jump at the chance to abandon Adobe CC, I can not do that without Photo having a DAM and a Print Persona or other implementation that provides the same range of printing capabilities as can be found in Lr.