The patch today leaves the Inscription trait in Air Magic as one of the final few traits untouched in recent times. In fact, this hasn't really had a look in since June 2015.
The trait is blah with a couple of prevalent boons for the ele, with the flavour of the Arcane specialization. To that end, in 2019, I'd say this trait should move to the Arcane specialization, to switch with Arcane Precision. Arcane Precision offers a condition on crits, which is what air magic is for, where Arcane is about switching attunements, like the Glyphs do.
Doubling up boons after swap and casting a glyph may have enough synergy in itself to make this the one change needed, but perhaps to bring it in line with the changes seen in 2018, selecting this trait should improve the actives with longer durations, or extra strikes on Glyph of Storm. We may see the classification of elemental command skills, like Herald Consumes, for added effects when they are commanded.
Failing that, orphan glyphs like Mesmer Glamours after giving glyphs a 20% base cooldown reduction, and create a whole new trait for Air Magic.