All the mechanical demands of the piano eventually boil down to, how are you going to touch the keys?How are you going to touch them in scales - arpeggios - octaves - parallel chords - trills - etc? How are you going to control the sound, and your approach to touching the key? This guides the physical motion behind every kind of mechanical demand, from Bach Fugue in F# major to Chopin op.10 no.2 to Rachmaninoff 3rd concerto to Ligeti Fanfares to whatever.The primary technical regime at the piano should simply involve refining and improving our method of touch. You cannot play beautifully without a certain coordination between the small and large muscles and levers, therefore everything should come from a beautiful sound.
My usual technical rutine is about an hour and half a day of Chopin selected etudes (3-4 a day, invariably getting back to the Op.10/2), then Feux Follets, followed by Mendelssohn-Rachmaninov Scherzo, and (maybe) a few passages from Rachmaninov Concerto No.3.