currently the proposed changes are thus:
double O-ring top cap, no more thread. (The aga-S I'm getting in "soon" already has this change)
Mesh style wick hole close to the center post so no more long positive legs or bent wicks.
Possible changes:
The center post is brass yes, but it's coated so it shouldn't be leaching, I am trying to get them to change to a stainless center post.
Borosilicate glass tank, this is difficult for them and trying to teach their engineer who doesn't speak good english about flame polishing, etc, I'm worried it wont make the next cut.
Reduction/removal of knurling. This might be there, when they updated the aga-s, the knurling went away, we'll just have to see what happens with the T when they finally show me.
The aga-s I'm getting in has a threaded SS tank, you can't replace that with glass but it's also smaller and already has some of the updates that are coming with the new version of the aga-t.