I suggested in the same page that we could have items for Wiktionary where sitelinks would use the label of the item for the sitelink-titles. Is this feasible? I'm not highly knowledgeable about Wikidata, but I suppose this kind of modification shouldn't be too difficult.

What do you think? Please come discuss this matter in the link above.

Have a good day,

Darkdadaah @ fr.wiktionary