Colorado events are now allowing the released AoA units (via proxies). I expect we won't be the only group to do so. Has Delta discussed incorporating them into future updates? I imagine it would complicate things a little (the value of certain Unique Squads in VC and the value of Crimson Widow seem quite intertwined, for example).
To answer the direct question: I don't remember us having a direct discussion. If we did, it wasn't very long.
If we did have said discussion though, my initial view (& vote) would be against any AoA inclusion. My view is that it's a massive undertaking & hassle for little gain. As you alluded to, we'd have to consider re-pricing everything for meta-changes from those AoA units (probably not that many would be affected, but we'd have to think about all of them to know which ones are). And updating 3 lists is harder than updating 2 lists. I'm much more concerned with finding & fixing leaks in the existing prices than trying to add new units in there (admittedly, marvel was an exception, in part because it was easy, and in part because it helped make Heroscape.org work better). It would also be much tougher to get real-world game data as feedback (which we get from classic & VC scape all the time), so I'd have less confidence in the final product of Delta.
Also, I'm not sure that it's delta's place to determine what units should be tournament legal or not. VC is so accepted & intrinsic to the community that Delta VC makes sense to me. I suppose it's possible released AoA units could reach that point eventually (although I'm skeptical), but they certainly aren't anywhere near that point at present.
That being said, I'd think that using Delta pricing with the released AoA prices would be more balanced than standard pricing with the AoA prices, so that combination seems a reasonable one for any local scene that wants to integrate AoA units in somehow.
My 2 cents anyways.