I agree with what everyone is saying yea the graphics look great but nothing much has really changed im really irked that they brought the doctor car back. That will be the first order of business, i do however like the map change i think it makes more sense to have all of the events take place on the same maps and map editing should be easier. In terms of game play nothing appears to have changed there's no new scripts or options we cant even control the lights or sirens! I was also hoping the events would be dynamic but they are the same too just spawned boring.
In my opinion because they are a small developer and they are aware of the large modding community such as this one and all the advances in gameplay that modders have made. They are just being lazy and cheap and figure that whats the point in adding all this content into the game when the community can do on their own. They are just going to give us the bare necessities as usual.
As for emergency 4 content i think most of the newer mods will be comparable if not better than the units in emergency 5 which aren't going to be anywhere near as detailed. I just hope there is a way to transfer or convert the content so we wont have to start all over. I just hope modding is easier for newbies like my self so we can get alot of new content into the game quickly.