Yea, they haven't release too many details, but everything they have released sounds AWESOME to me.. when you first learn WMH, you expect warjacks/beasts to be a large portion of your army, but for most factions, if you want to be competitive, that is not the case. The MK3 rules are trying to change that by increasing the focus generated and rebalancing points of models. They said 75 will be the new 50 points, but the warjack points your warcaster has is almost doubling (so a 50% increase compared to old point values). Having a warjack start in the control area of your warcaster automatically gives it a focus, and convergence can now induct all focus a vector spend to another one, so the same 3 focus can travel through all your vectors (jacks) if they are positioned correctly. For warlocks, dead beasts still generate fury for you, so late game when all your beasts are dead, you still have some fury coming in.
Basically, all the 'quality of life' issues people have had with the game are being addressed, and it will be more about giant robots/beasts fighting other giant robots/beasts.
They are also going to redo all the models, so you have to buy a new faction deck with new stat cards for like $20, but again no one is upset with this price model. Other games would require you to rebuy most of your models whenever they'd revamp the game like this. $20 seems more then reasonable to update your entire faction.