When venris spoke about it on stream, he mentioned not to expect it for a long time(my guess is it will at least take longer than the longest major game update from WH2 took).

Believe they intend to rebuild the mod from the ground up only with intimate knowledge of WH3. At least a unit rebalance will drop first so we wont have to play with god awful vanilla units for toooooo long. Sometimes I forget just how bad vanilla units are but one look at bretonnia and I'm swiftly reminded.

Chaos Gods only knows :).

Could we just get a balancing mod first, without any new mechanics or units? Hopefully that wouldn't take more than a couple of months to make?

"Balancing only" thing that we were doing for over 4 years here lol. For game that will have hundreds of units and new abilities. Sure :P, will be on release heh.

Be patience, we dont deliver things just for sake of them or before being finished.