What I'd like to see in the next wave of RTS games, then, is a method by which they screw with the various units just enough from game to game that simply being able to do the same thing over and over again as quickly as possible does not equal success in multiplayer -- somehow introduce a measure of creativity and quick-thinking rather than just "zergling rush the bitches until Blizzard patches us"-style tactics.
Play Company of Heroes. Unlike Starcraft, which is still an old-gen RTS, despite the new graphics, COH has things such as popcap, map control, directional cover, suppression, retreating, reinforcing, etc. Sure, there's a lot of luck involved, and it's not perfectly balanced, but in many aspects it makes SCII look like a kid's toy (and dare I say it looks prettier to, even though it was released a long time ago). Furthermore, it's not a clickfest nor a spamfest, so even people out of their teens are able to play it very well.