I see that in Linux Mint 18.1 Emacs is saying that tpu-edt.el and tpu-extras.el are "obsolete".
I still use Emacs emulating TPU emulating EDT, as does at least one other person at my institute. I don't think either of us would like to see it disappear.
Please retain tpu-edt.el.
Many thanks.
Roger Clowes