I'm going to guess with no ETA that means at least a month or two. Have to account for any remaining dev work, balance testing, stability testing, and any other considerations such as final artwork, cost to recruit, likelihood of finding/getting in the Tavern, etc.

Some or all of the above may be done but it's all stuff that has to get done before even one hero can get out the door, I would imagine. With no ETA I'd say that leaves at least 50% of that to do.