Pretty much agree with Path's thoughts on this.
I need a new .308 semi and have always thought the bullpup was ideal except for the drawbacks I've mentioned elsewhere, poor trigger pull being the only critical one, and the RFB seems to have addressed it.
I don't imagine Kel-Tec will budge at all on price. They have seen sales of one of their 'hot products' drained by another manufacture who offers a very close copy. I would guess they will want to recoup as much of the development costs as possible before a competitive "copy" hits the market.
If that happens, two things will result. One, lower priice, and two, the design will have proven itself reliable and desirable enough to be copied.