Well it really depends on if you mean the "dream" that we have at night, or the "dream" we have in our minds / a vision for the world.

For the nightly dreams. I get nothing. Just black. Every night. Each night lasts maybe 5 minutes tops. Sometimes I'll get something cool, and sometimes I'll see a few dream characters that recur throughout my dreams. But other than that, nothing most of the time.

As for world visions. I suppose my favorite one (and most looked forward to) is ubiquitous computing. Everything is personalized, digitized, and synchronized. You walk up to a vending machine, hold up your phone (or have an eye scan or something) and it'll deduct your cash and give you whatever. Computers in walls, tables, etc.

Basically take all of those "videos of the future" things that companies put out, and merge them all. Seamless computing. Data available instantly. And battery life galore. Wireless charging, inductive charging, etc. No need to worry about battery life.

That'd be nice.

In terms of culture/media: I'd really like everyone to just burst with personality and uniqueness. Right now, everyone is just kind of the same. There's the few people I meet that have these traits, but I rarely come across them. I strive to myself, but fail due to still being in school and not having the funds to achieve it. That and genetics is a curse.