The new TCS 4.0 rules (which resulted from YEARS of discussion and testing) are coming out with GD '42 which is still available on pre-order currently. Get that order in from MMP before the game is released (any month now!)
I hope that will break the logjam. I understand a few other TCS designs have been amrking time until 4.0's armor rules cam out. I hope Arracourt shows up soon. That's the battle I've been wanting to see.
I'm also hoping to live long enough to see GD 43, GD 44 and GD 45 come out!