Alright, you asked for suggestions Varg, and you shall have them! If we players are good for anything, it's giving suggestions (and whining). But whether or not they are feasible is entirely up to you.
- Aura that gives saves against fear, amongst other things. It *must* be a type of bonus other than Morale bonus. Morale and Enhancement are two most common bonus types.
- Multi-enhancement selector that gives bonuses to TWF, THF or S&B fighting styles.
- Haste Boost, Saves Boost and/or Damage boost.
- Buffing spells like Haste and/or Rage.
- Blur spell, which is one of the best parts of the Protection tree.
- Boosts to AC, PRR and lowering of armor pentalties.
- Combat Casting as a feat. Since the Warpriest is likely to be in the middle of combat, ways to increase Concentration are very desirable.
- SP cost reduction for Quicken, Empower Healing, Enlarge and maybe Extend metamagics.
- A way to regain SP by getting hit in melee. Similar to what Bear-form druids get in the druid melee tree.
- Life shield, as the item property.
- Divine Power as an SLA. (Note: Divine Power provides an Enhancement bonus to Strength. If this bonus type could be changed, even if you have to lower the +6 bonus, I would appreciate it.)
- Divine Might, as the paladin enhancement.
- A Life Shield Aura.
- A passive, permanent boost to saves, especially reflex saves.