if case size remains the same, as bore goes up, barrel length can be shortened.
ie a 375h&h, needs less barrel length than a .300 win.mag/wby etc...
ie just like a .243win should have a longer barrel than a .308win.
I believe they say the 375H&H only needs 22"
IMO 22-24" is perfect for the 375H&H
essentially they just need to put out their safari model in stainless/synthetic.
and they released 2 new guns that are pretty useless IMO, at least in 375 they are... they offer some other cartridges too.
I'm sure I'm not the only one who is foaming at the mouth for a syn/stlss version of the safari model in 375H&H, and while at it probably 416rem too, ie the true "alaskan"