User blog comment:A, Mori/Should We Rethink The Classpect Titles?/@comment-16075172-20160422174214/@comment-1917722-20160423143133

@Classes: As far as I can understand what's said on MSPA Wiki (which, given all this speculation, is slightly difficult), I'd sooner pick Mage for Delinius - I'm seeing very little things with Heir that sound like Delinius hugely, and one of these speculative things under Mage speaks of "benefits themselves with knowledge pertaining to [aspect]", which, given what you've explained about the aspect Light, sounds oddly similar to the examples on this page.

This is just my interpretation, though. Heir could be made somewhat plausible if I read it a few times over, but I'm leaning more towards Mage.