Agree that Stormcast get too much attention, and you can tell from the comments on the rumour engine posts on the GW facebook pages that there is a lot of sarcastic comments, and when they had votes on which battletome or army would you be using from Soulwars, Nighthaunts won by a mile. I'm a fan of Stormcast, and yeah, it's too much too keep up with, and any attention spent on Stormcast isn't being spent on other factions.
I'm most looking forward to, and at the same time a little dreading what they might do with human factions. I hope they keep the spirit of the old Empire in the Freeguild stuff. Of the 4 "Empire" factions, Free Peoples, Collegiate Arcane, Devoted of Sigmar and Ironweld Arsenal, i'd say the Collegiate and Devoted have the most room for a range expansion, but I've seen more stuff mentioned about the Ironweld - right up to Cogforts, which would be cool to see, but we would see a plastic Thunderhawk before we saw a plastic Cogfort.