If it makes you feel better about the shaman i think that the Ravenkin paragon path will be a shadow pp for primal classes just a guess.
Actually there is a set of class features that can be traded between builds. The cavaliers summon mount which is both a class feature and a level utility power so both blackguards and opaladins which am betting with be called divine champions when re released, can gain them as level 6 utility powers. The blackguards servant of vice is both feature and power takable by cavaliers and champions as powers. The divine sanction of champions is baked right into paladin powers and feats so both blackguards and cavaliers can use it. Use may want to refluff of course such as calling it summon unholy steed and summoning an fiendish horse or shadow or purple dragon. Or summon servant of virtue or divine servant. The former could be a latern say and the latter a small imp sized angel. Divine Sanction could became addictive complusion or enforced virtue.
Actually there is a set of class features that can be traded between builds. The cavaliers summon mount which is both a class feature and a level utility power so both blackguards and opaladins which am betting with be called divine champions when re released, can gain them as level 6 utility powers. The blackguards servant of vice is both feature and power takable by cavaliers and champions as powers. The divine sanction of champions is baked right into paladin powers and feats so both blackguards and cavaliers can use it. Use may want to refluff of course such as calling it summon unholy steed and summoning an fiendish horse or shadow or purple dragon. Or summon servant of virtue or divine servant. The former could be a latern say and the latter a small imp sized angel. Divine Sanction could became addictive complusion or enforced virtue.