They made him early on, he has his door wings. I wish we'd see things like this more widespread though.
Bee would look pretty shrimpy next to the Unicorn statue though. Now if they made Jetfire or Devastator (either G1 or Movieverse) and parked that next to the Gundam, it'd be a different story. Heck, even Blitzwing (Movieverse) but the Japanese have this thing against villain characters so that idea would never fly, unfortunately, even if Transformers were as a huge a phenomenon as Gundam here. Optimus Prime would probably be more iconic and work better though.