Interesting, I have the same general positive points to make as yourself.
May I try and depict some possible negative points about the game?
* Lack of understanding towards the story line at this moment in time.
* Dante's appearance is substantially different to how it is in previous Devil May Cry games.
* Graphics do seem a little blurry and rushed (To be honest, my eyesight is quite poor though)
* Fighting looks seemingly easy enough (Combat seemed to be quick throughout the trailer, gives me the impression that enemies are easy to dispatch) It
could make for an easy game to complete, too early to call.
* Keeping canon with the story. For instance, if Dante has a Devil Trigger, though it's meant to be set before his was awoken (It does appear that something happens to make his hair turn silver/platinum, but how this happens I can only speculate on at this moment in time)
So to summarise...
From what I can visualize in the recent trailer, the graphics aren't as amazing as they probably could be (Seems a little too like a cartoon) The game-play such as fighting primarily seems to come across as quick and easy to pull off successfully, making it overall less challenging. It appears that Dante's weapons such as Rebellion and Force Edge are not present in the trailer's footage, however, a new weapon that appears to morph has taken their respective places.
Are these negative points similar to any of the negative points you currently hold? Without dampening anyone's spirits, negative points respectively still should be discussed to represent our feedback as potential buyers of the finalized product.