In T404457, we have, for the first time ever, a previously-deleted Wikipedia returning to Wikimedia servers. When the Toki Pona Wikipedia last was hosted here, there was no ISO code for the language, and according to T30504 it used thee different pseudo-ISO-codes at different times:
- tp.wikipedia.org
- tokipona.wikipedia.org
- art-tokipona.wikipedia.org
Given that there remain off-platform links to the old domains, and that in cases where a wiki got an ISO code we have renamed the wiki and created a domain-level redirect (see generally T125073), I think we should do the same here, even if this differs in the intervening steps of the wiki being deleted and then (soon) re-created. Note that tp could be a valid ISO 639-1 code, but it happens to not be. As far as I know no new 639-1 codes are being created, so I don't think this should be a blocker to restoring that code as a redirect.
I'm not putting this as blocked by T404457, on the basis that the tok.wikipedia.org domain does already exist, even if it currently points to Incubator.