As discussed, we want to send an email to the TEI-L announcing the introduction of nesting TEI elements and asking for feedback on the proposal to deprecate <teiCorpus>. I made a first draft for this email here (https://docs.google.com/document/d/1Jlk0FUHjUKlN-1-WAqhlhYReT2yq_eIbYP66oskxmXM/edit) and ask you to chime in. I suggest to send this on Wednesday.