Just got back from Europe on a nice A330 flight in coach (rows 10/29 rock!) and planning a spring trip ATL to EZE and SCL. Looks like this is all handled by 767s. I dread a 10+ hour flight in coach on one. Anyone know if they are moving to the reconfigured 400s or another plan all together on these routes?

I saw thread on the European flights but not much for South America.

Thanks in advance.