[Single Class Druid] - Shifter Subclass

It all comes back to what has been said before :

I'm rather disappointed with the Shapeshifter. What I'd have preferred to see is the following:

• Spiritshift becomes a modal rather than a limited duration ability.
• Spell casting is disabled whilst Spiritshifted.
• You start with one Spiritshift form but can learn the others at the cost of an ability point.
• Spiritshift is better than for non-Shapeshifter druids (bonus to power level perhaps?)
• Ideally there should be some abilities and passives that improve Spiritshift, so that a Shapeshifter who focuses on it can choose them over spells.