Need? Nothing. I have everything I'll ever need. I may have to go to an earlier edition to find it (World Builder's Guidebook), but everything I could need for a D&D game exists.
Want? Oh, yeah.
I want Bastion Press to get all the domains of Oathbound designed and released.
I want Goodman Games and Necromancer Games to keep doing what they're doing.
I want Fiery Dragon to keep making useful products that don't include prestige classes!
I want deluxe box sets, and I don't mind paying $100 for them. (Well, I'll end up paying $70 at amazon anyway

)
I want Mike Mearls to be my DM. (Is there anything regarding d20 this guy hasn't written?)
I want the Planescape team back together doing Planescape. (
Beyond Countless Doorways is undoubtedly a good first step, but I want more.)
I want an extra 6 hours per week added to my life so that I can actually spend time gaming.
I want JoeGKushner to stop starting threads like this and get to finishing his review on the World's Largest Dungeon.
