Neonchameleon
Legend
What if I want to play a vampire (I don't)
You take the Vampire Multiclass feat currently under playtest.
or one of the new classes from the Feywild book?
Assuming it's like HoS:
New class: The Blackguard. You want the powers, play a Strength-Paladin (which can take almost all of them).
New Class: The Binder. The only Binder powers you can't take as a Warlock are the At Wills.
New Class: The Executioner. The oExecutioner can get almost all of their powers if he wants it.
New build: Death Domain Warpriest. Almost all the powers can be taken by a PHB Cleric. You just get a couple of bonusses for locking yourself in to those powers (even the bad ones).
New builds: Necromancers and Nethermancers. Are builds for the Mage - all powers usable by the Wizard (and the difference is largely cosmetic; if the Mage got Ritual Caster I'd consider it entirely a superior implementation to the Wizard).
Or a Shugenja?
I have no idea. Given all the actuals either fit with old-style classes or are being given options to fit, I'm going to assume there'd be something there. After all there has been so far.
Telling me that I have all the pre-essentials books to pull from is like telling me I can just play an older edition.
Telling you you have all the pre-essentials books and a good half of the post-essentials powers on the other hand...
Having books for beginners is one thing, but like many other players, I want more options in future products.
You are getting them. You are getting almost everything people going for "essentials" classes are getting. Now where's the problem?