Export files in TIFF setting color depth, dpi, sharpening level.

I would like to edit photos in Lightroom mobile for my Ipad Pro (great with such a fantastic pen) but is a shame not to being able to save the pics in formats different by jpeg or png for edited version of the picture.

Why don't make possible to have an Ipad limited version with, for export, setting like TIFF, color depth, dpi or sharpening for print/screen?

This would change the workflow of many thousand users of Lightroom for Ipad pro, being able to fully develop pictures on mobility!

Thanks!