Lacuna
I suspect that all lakes choice mobs may respawn. The kipucka in EI does as well as the the Kiro that Daomei mentions. Though I observed both respawning far sooner than 2-3 weeks.
Thanks for the info about the kipu in EI, I confess I did not recognize that it respawns, too. But I am fairly confident about my judgment concerning the kiro respawn. I have spent many months, in summary probably more than a year, at Loria ponds, and I can count our mats in Diwu's guild hall :). I think it is more than 2 weeks until that beast is reappearing. We kill it, and its nasty dumb minions, everytime we see it.
Death Yubo and Death Clopper definitely respawn only on reboot.
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Daomei die Streunerin - religionsneutral, zivilisationsneutral, gildenneutral