I still think its a good idea, I mean my HE0100 is basically a Realforce 76U Japanese version layout (So it actually has more keys than a tenkeyless, but its the same footprint size). But I doubt it'll ever be made. The number of people who want something smaller than the 86U/87U but are not comfortable using the HHKB probably aren't enough to justify a new model.
The next prototype Topre model I believe is following the Arrow Key Less model where it's like a TKL but instead of no Numpad, they remove the arrow key area (Though its a japanese version... so they just fit the arrow keys in somewhere else since you need those arrow keys for IME).
