We're badly overdue. If memory serves, the top 2.5" used to be around 50% the capacity of the top 3.5". That's before 3.5s went to high platter counts. Still, 3TB should be out.
The only good news I've seen is in SSDs. After a 3-year stall, there's finally some price movement. Baby steps though, nothing dramatic yet. 2TB and 4TB have dipped below their 2015 prices, everything smaller is still above 2015.