Well, I'd probably alter my assessment of wild shifting if I were you. Sure, you get back wild shape from moonspeaker, but you miss out on eight levels of progression, on top of the four you lose from moonspeaker itself. You end up with a wild shape level of eight at level twenty, getting large when you would otherwise be getting huge, the domain of the dire tortoise, and slowing down everything else considerably. That wouldn't be that bad, except wild shifting is terrible, even in a wild shapeless vacuum. The bonuses are all so damnably marginal.
On a somewhat separate note, I would include the fact that level four is a good break point for moonspeaker. If you read through it, there's nothing especially enticing between level five and eleven, especially when you consider the fact that ditching moonspeaker lets you advance beast spirit further. Rapid summons is some sweet business, and you don't get it at all from druid 8/moonspeaker 12.
As a final druid thing, I don't know if it's worth mentioning in a shifter guide, but there exists no shifter feat that qualifies as gold on a druid. Not even mostly prerequisiteless extra shifter trait is all that good when it's up against the oft ridiculous druid feat list. Lots of shifter things change in a druid context, actually, though again, not sure if that information has its place in a shifter guide. As an arbitrary example consider the altered utility of longtooth and razorclaw when you consider that most wild shape forms already run those natural weapons. It's actually pretty hard to come up with a form fit for beat stickery that doesn't have a bite attack, though it's somewhat easier with form adding feats.