Sounds to me like you should be playing Guilty Gear.With this game releasing in less than 3 months, there have been many play test. With some of these test have came the feeling that the play-styles of the characters are homogenized. Is Arc holding off from showing it's....Trump card(s) or is what is currently shown the best it's going to get?
Having archetypes in title alone won't cut it. Theses things must be injected into the approach/execution of each archetype as much as possible with the lowest correlation to each other as possible.
Universal mechanics seem to have very little back-n-forth counter tactics (currently too safe) and meter gain seems a bit too easy. Combo routes all seem to start and end the same way. I'm not sure if Arc has any plans to add the attribute system from Blazblue to DBFZ, but that would seriously help add value to normals/specials in the neutral zone (http://www.dustloop.com/wiki/index.php?title=BBCF/Attack_Attributes).
To sum it up, is DBFZ all flash (nostalgia) with little substance or is there more?
Not trying to be an asshole. But from how you post you seem intelligent. You also seem like you are holding out for this game to be something it isn't.
Most of the time when people ask questions like this in my experience, they want someone to "convince" them. Instead I'm just going to challenge you to come to your own conclusion.
The game CLEARLY is not Guilty Gear level or Blazblue level. This is factual information at this point.
Now the question is, can you accept that? Is that ok for you. And guess what? If it's not ok for you then that's fine too because hey....GG and BB DO exist and you can play those. Play DBZF for what it is and be able to accept that yes the game will grow deeper as people explore the game as ALL fighters do. But also accept that unless the game gets an overhaul, it will not be on the level of depth as it's predecessors.