Why not HTC put a rough copy of the B-29 in a Titanic Tuesday when ever they get it ready, and leave the normal arenas up for whoever doesn't want to play. The rough copy would be simply a B-29 that flys correctly, has a B-29's bombload, speed, and armament. Not all the animation has to be right. It could look like a B-24 for all I care, I just want to see if the B-29 will be as apocalyptic as many say. As for all of you who say we should have a propper B-29 for the test model, then I say "design it yourself". I bet HTC wouldn't want to waste the work required to build a B-29.
As for the problem arising from the B-29's remote controlled turrets, why not just put a regular turret in for the test model to make thing easier and not to waste work should the B-29 not work out. If it is decided the B-29 won't end the world, then I propose we have it so see it through a gun camera. I would bet that's how they had it in WW2. Just simply have it from a gun camera our sight on the screen. I can't think of a simpler way to do it. Remember, this will only be a test. If HTC get a large ammount of complaints regarding the negative impact of the "B-29" to the game, then all they have to do is remove it, and all that would be wasted be some changes to a B-24 or B-17.