unfortunately unless Activi$ion gets a cut I don't see much hope of that happening. They would rather you buy them via microtransaction.
Well, traditionally, emblems were never sold via microtransactions. All emblems offered outside the game were either given at conventions or with specific items from the Bungie Store, so I do not see a financial loss for Activision. They're already making money through the licensing deal, creating a few emblems would just add value to a brand they're partnering with and could eventually drive sales. I know quite a few Destiny players collecting emblems wherever they can find them. Both Activision and Mega Construx would benefit from this.
The REQ packs in their Halo sets probably pushed sales for these items and I'd guess 343 were not asking for a cut or if they did, was probably included in the deal beforehand.
I'll keep my hopes up for these emblems.