Stylin'.
For me, I loved The TV movie tardis. Very jules Verne- and the bats where a nice touch. The core I would take from Peter Davidsons and bring back the hexagonal white things- perhaps add some mcecher type black and white weirdness.
Clothes wise, I think I would revisit the long scarf... perhaps thinner and shorter with more harmonius autumn colors. A touch mary poppins... since I would be female. Maybe a collar that can be drawn up to a hood I could peer around mysteriously. Fingerless gloves or sleeves that act that way... (england and wales is chilly to film in) Pockets for gadgets... no more 'one screwdriver fixes all'. My sonic would be coppers and brass- with aqua glow, and a long crystal exposed in the handle that dips like the tardis console when fired. Jelly babies and Jammy Dodgers all the way.
Hmm... what else... I would like to get my granddaughter susan back- that would be fun... romana would make a pretty awesome opponent- perhaps she is trying to bring back gallifrey but I know it would start up the war and we battle it out in different tardis'- trying our best not to hurt each other. Hmmm... a reprogrammed cybermat would be a fun pocket object.
Anyone else?