So I'm aware we have the HADS (Hostile Action Displacement System), but in Capuldi's 2015 season, they introduced another version of the HADS, the Hostile Action Dispersal System, where instead of relocating when under attack, the TARDIS atomizes, and is summoned back via the sonic (in the same location).
This acts like a more severe version of the first HADS, and would be useful on planets like Skaro. It would function precisely like the description, you could either use a key to summon it back or sonic it's last position to have it appear back there. It would disappear/blow up upon attack.
That's just a small idea I had, and I'm not sure how well it would fit in, but to have the option would be nice, even if just for roleplays.