Pardon this extremely crude and quick drawing (my drawing skills certainly suck), but this is what I had in mind as a sort of hybrid between the tube shape and the flattened shape:
Essentially you take a tube shaped hull, much like the osiris/resheph/geb/libcaps as a base. There's one main engine at the back (the larger center thruster of the current hathor), with the underbelly engine detail that some of the other caps have (heat sinks and such).
At the front of the tube, instead of coming to an axe head like the osiris, it splits into a more catamaran-like shape, allowing for a forward cargo bay door to be placed there, much like the docking bay on the togo bs:
(for those who arent aware, between the two catamaran hull segments of the togo is a big docking bay door)
On each side of the tube you have a large nephthys-style wing, slightly downswept, with an engine built into each wing (so we can keep the 3 engine setup of the current hathor, with the main engine in the center and one on each wing).
On top of the ship, we have the standard circular/dome shaped bridge section, but with just four window ports on the front, and the dome is more teardrop shaped towards the back, blending into the rest of the hull rather than simply sticking straight out.
Turret hardpoints are where my design here falls short. The current hathor can fire all 8 turrets forward, while this design only allows for 7 (one turret is rear facing), that could be a problem, and would need some creative changes to the ship shape to work out.
Other turret hardpoints are:
2x Heavy gunboat hardpoints on each side of the forward hull
4x gunboat hardpoints on the wings (one on top and one on bottom of each wing).
The remaining two turret hardpoints are on the top-rear and bottom-front of the center hull.
I'm sure a lot of hathor pilots would be pissed if they lost a forward turret, so I'd like to see if someone can come up with a solution there. Otherwise, I (personally) would be fine with 7 forward and one being rear only, perhaps if the bottom turret (the forward one) was also a heavy, giving the hathor 3 heavy turrets and 5 normal turrets. That would at least allow for more versatility in armament.