The clan support would be part of an update to Impulse as part of the Elemental release later on.
As to how it will appear in Demigod, I can't say at this stage since I can't speak for Gas Powered Games.
But the idea is to move more and more of the whole lobby/match making system away from the hard-coded stuff you see in Demigod to an overlay system.
Some people have complained about the Demigod lobby and the reason it is sometimes flakey is that it's all written in LUA (nothing wrong with LUA per se) but it's a very complex LUA script.
But with an overlay system, we would be able to set up all kinds of different games and matches including clans. But like I said, it won't likely get in until around Elemental's release since that's where the budget for that is coming from.
As for actual EXE versions of Demigod updates (i.e. v1.3, v1.4, etc.) that's really up to GPG. Right now, they're in crunch time with SupCom 2 so it's unlikely we'll know what their plans are until after Supcom 2 ships.
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