The idea was discussed a while ago within the EB team when scripting was less well understood. The far more limited scope of the Res Gestae Roman pack and the tech developments since the original EB discussion made it a much easier 'fit'. That, and a couple of limitations that the raise a legion script forces on the mod, would make implementing it for EB a far more difficult task than for Res Gestae.

To answer some of the specific issues raised here, though:

- There is no technical difficulty with the AI using the same feature. The extra units and the extra money paid is all bundled within the script so the AI 'sees' just the same old original unit with normal stats and cost, so how often you'd want the AI to use it would depend upon what unit you associated it to.

- I really don't know what, if any, help it would provide to increasing the number of large AI stacks as here we get into the murky waters of the AI priortisation. Would they keep it together or would they split it apart to go and pursue different objectives? A question for the ardent researchers out there methinks.