I have a suggestion concerning a new class of capital ships. Said class would be the opposite of the Paragon class battleships you introduced. It would be a versatile mid to high tech fast battleship. Where as the Paragon would be a "a mobile battlestation", with high crew demands, and low range, this fast battleship would have been designed as a carrier escort, with an emphasis on range, speed, maneuverability, point defense, and simplicity, capable of going as far as (if not farther) a carrier. With less crew and fuel demands as a Paragon, it would also have more fuel and supply storage capacity as well (not considerable, just more). This fast battleship would have more armor (it would be more reliant on armor), about the same hull integrity, but have less efficient shields than a paragon (comparatively). While this fast battleship would have an emphasis on point defense, it could be easily refitted for commerce raiding, close support, of frontline service.
It sounds like you're describing the Odyssey.
And a good reason to use new and unusual designs is because they provide more unique gameplay interactions than symmetrical ships with a few wide-arc turrets. Sure, something that looks fairly similar to a WW2 era battleship wouldn't be out of place in Starfarer, but the Astral and Apogee are certainly more interesting to pilot because of their asymmetry.
That said, I'm all for more ships. I don't think it's possible to have too many ships, so long as they're all relatively balanced. And I'd like to see more that fall into the battlecruiser role somewhere between cruiser and battleship. It sounds like the Odyssey is supposed to be one, but more couldn't hurt.
And while it's on my mind, I think I'll mention that the Falcon and the Eagle seem awfully lackluster compared to the other cruisers (Venture aside, since it's supposed to be under gunned I think?) It feels like they're so horribly slow and just don't have the defenses to survive much beating or enough kick to go toe-to-toe with much anything else. Maybe this is intentional, or they're just poorly represented in the missions they appear, or I'm just bad at them, maybe the Falcon could be massaged into a spot midway between destroyer and cruiser while the Eagle could fit into a heavier cruiser or battlecruiser role with some buffs?