I was thinking of a wiki w/o machine translation support but for which the community had been lobbying for it, with an added bonus if the language in question was related in some way to a larger language family.  For example, perhaps since Catalan is a romance language, perhaps a model trained on French and Spanish would be able to pretrain for Catalan.  (But on the other hand, Latvian is pretty isolated as a language, so would only be worth cross-training with Lithuanian.)

The data is probably buried in those two pages you cited for me, I've just got to dig for it a bit.  One odd thing that jumps out: why do we support en->zh but not zh->en ?

 --scott