Here's Jim's prior responses to other Hagerman enthusiast's requests for such a thing:
It's not likely. Crossover design is very specific for each speaker. There can be no one generic machine with knobs & stuff that will do the job properly. For a good example, look at what Linkweitz did for his Orion design.
So how flexible should an active crossover be? Two band or three band? Do you need your choice of rolloff steepness? This isn't too hard with op amps, but using tubes might make this difficult. All depends on the requirements, how far you want to take it.
This is his opinion about designing an amp, possibly SS or SS/tube hybrid for folks with low-sensitivity speakers:
As for real-world speakers. Well, low sensitivity and complex crossovers are a crutch for inferior design, just like feedback. Maybe those aren't the speakers you really want.
I interpret what he's saying as that he's only interested in offering versatile, distinguished and competitive products that he can stand behind (and he does, spending hours doing support on this forum). I think that from his POV, if he were to design a crossover that was tube-based, it wouldn't be versatile, and if he were to offer one that was versatile enough it would have to be op amp-based, which would make it indistinguishable from other market entries.
I'm with you guys in wanting to see a Hagtech active crossover. I'd even be happy with an op amp design. I'm just not holding my breath. But who knows? Maybe Jim's waiting for someone to double-dog dare him into it...