Anyone knows when PS3 and Wii U will stop being tracked? Both are already discontinued IIRC.
Week 52 will be the last week with PS3 and Wii U sales (also same for the New Nintendo 3DS, since it's been discontinued). Trackers always stop sharing public data at the beginning of the calendar year, though they sometime keep tracking the consoles (I remember that happened for the PS2, with the data only available to subscribers).
Only modern exception I can think of is the OG Xbox, that stopped being tracked right about when the 360 came out.