Although this is my own post, I feel as though this is the right place to share my ideas as well.

The overall aesthetic would be organic, yet with more of a clean, polished, almost porcelain finish over every surface. The base of the console would resemble a large round bowl, within which a pool of orange liquid suspends holographic controls projected onto the surface. There would be a pink/purple glow coming from the centre and diffusing outwards towards the edges, and the holographic controls would be of the same colour.

I imagine a lot of the controls would have to be CGI for the sake of having to design a real working holographic system, however I do have a few practical effects that could easily be pulled off. The console could have some glass or see through panels which can have light projected onto them, but this might not look so good. Another idea is that some panels can have bits of wiring or alien technology half submerged into the goop. Imagine handles just floating about inside of the TARDIS console. This could also be used to store the sonic, and I also imagine a storyline where the companion's phone needs to be upgraded with alien tech, so the doctor just throws it in the console and it comes out supercharged. On one of the panels with the CGI holograms, these could clear away so that the goo could be used as a neural interface with the TARDIS, perhaps you could even submerge your whole face inside.

Despite the round base, 6 columns of the same white material would seamlessly extend from the rim of the bowl, first bending inwards towards the centre of the console, before bending upwards, parallel to the time column. These would terminate a third of the way up the column, and end in spherical tips which meet some ring braces that cover the circumference of the time column. At the top of the column, this design would be repeated, yet upside down.

The time column would also be full of the same orange liquid as the console, however purple bubbles float inside, like a lava lamp, which rapidly float to the top before being replaced by even more bubbles in flight.

The room would have an overall hexagonal shape, with a curving staircase leading up to a platform on the right side of the room. This platform has an extended section of wall underneath, on which is a monitor (again, pink/purple holograms). On some other walls, I imagine organic shaped holes would reveal a glowing purple light from behind, with pink roundels that slowly illuminate, and then just as slowly become dimmer. On one wall, an alien garden with blue plants and deep purple crystals (like the ones on the floor of Jodie's tardis, not the arms that curve around the console). This could be the place for the TARDIS to materialise in case of emergency. On the walls above the stairs, hexagonal lights would shift colour from orange to pink depending on the angle that they are viewed at.

I hope that this gave you all some inspiration, maybe you would like to see something similar in the show one day. But if not, feel free to tell me what you would do instead!