Imo, both existing godsworn paths have a mage/spellblade bias
Kitsune gives us Foxfire (spellpower), Blue Flame Blade (spellpower), and Kitsunetsuki (need catalyst)
Valkyrie gives us Sunstrike (spellpower), Celestial Form (willpower or presence), Aurora of Vigor (spell scales off level?)
So to give non-mage characters some love, I'm hoping that Nareva's soulbound TF doesn't have any spellpower-based powers despite Nareva being the patron deity of magic. Instead, I'd like their powers to be more anti-magic themed to aid them in their roles as witch hunters. Deflecting magic, eating enemy spells and buffs for health, and party wide silenced are some ideas. As an ult maybe permanent silence on your target?
I'd also like it if there were an NPC who could teach the player some demonic powers if you have high corruption, which can be an alternative to soulbound powers. Could also make them exclusive from soulbound powers by requiring a soul to power them. As a theme for this set of powers, I think risk and reward would fit well. Could go the way of FF's Dark Knight and focus on casting from HP to buff and do damage.
Requiring a soul to power them seems counterintuitive to, y'know, demons cumming their souls out by default. Rather, I feel more likely that whatever the Soulbinds do just blocks off your ability to use your corruption for fuel in such a scenario, or similar. Requiring maintaining a minimum of 80 corruption should also be obvious. I like the cast from HP, could be a version of Bless that causes you health damage, but gives you increased attack + spellpower and heal on kill (like Gweyr has in the flashback) for X rounds. Otherwise I personally feel demonic powers should mostly be mental attacks, similar to Psychic blast.
I agree with the rest, but I wish the existing powers could at least have multiple scaling, so it's not just spellpower based characters that can use them. Kitsune I have an issue seeing their powers work off physicality just because of their nature, but at least letting Presence boost it if it's higher than Willpower would be nice, Kitsune almost universally being charming tricksters after all. Valkyrie meanwhile while paladin/cleric types mostly seem like they should have some physical based abilities, just going by the existing Valkyrie in the game, from musclemommy Anni, to the massive Thrud to the super-fast Eira. Preferably something to use their wings with, like a stronger Driving Thrust that relies on flight abilities for a divebomb, or a stance using flying abilities + light control defensively, the latter perhaps scaling off the bigger of your Agility or Willpower.
Otherwise the Gothmanders seem mostly mage-knights from what we've seen, which is part of the issue, since then that's three mage TFs and zero physical related. If anyone would be justified to have a lot of willpower and spellpower based abilities, it would be them, like a version of Kiyoko's Karmic Retribution and Counter Magic abilities, latter probably a stance.