And yet, there are a lot of us using TG for animations already.
For someone that uses TG in a production environment, I'm glad they are concentrating on a 64bit version over something that will essentially be a curve editor, that most will only use for camera moves. I tend to export my cameras into TG anyway, so there is really very little need to plot them within app.
The import options have been improved considerably over the last 18 months, film backs, scaling, etc. Brilliant stuff.
If you want linear movement, ie no ease in/out, the 'get frame' node is more than sufficient.
TG animation in it's essence, allows you to output a stream of framed images. Running out of memory from 32bit population/mask restrictions is a bigger issue, which thankfully has a higher priority and is close to being achieved.