I think you’ll find that Humax are concentrating production on the Aura.
They did the very same thing on the T2, &2000 models.
They seem to do it every time, in order to boost sales of the new models.
until recently you could get earlier models that seemed to disappear, then reappear.
The only one that the haven’t brought back so far is the 4000t.
However time will tell.
I know that Manhattan are working on the new T4R models, as they’ve retired the T3,
from production to make way for what is supposed to be the new improved one.