Am I the only one that was expecting the successor to the Nexus 7 to be announced yesterday? Perhaps it's coming in the summer, or at the fall event with the other Nexus products.
You aren't the only one waiting. A new one with SD storage and a couple other small feature improvements will make it a device to be reckoned with more than it is now. I thought it would be previewed as well, but yesterday's meeting was largely "who cares" unless you care about Google music.
And you can bet good money that Google will not include sd storage in future models: http://m.androidcentral.com/why-nexus-devices-have-no-sd-card
This is why an iPad joined my Nexus 7. Google is very heavily invested in the cloud and doesn't take local memory seriously. This is fine when you're in the land of pervasive Internet connectivity. OTOH, I do a lot of business in West Africa at the moment, and this means I need to download my entertainment before I go, since streaming just isn't feasible here.