Many rewarding paths.
Still, hard paths requiring creativity and ability to sell yourself, not just the working-harder-than-the-guy-next-desk-and-get-promotion kind of path. And yes in the long run, the more you find your niche the more likely you`ll look like the already mentioned T-shape employee, nothing bad about that tho.
Entrepreneur: This was my first job (somehow, I started off with a startup and with some luck there was a good idea behind it) your skillset must include (or probably have its focus on...) business stuff, but being able to envision a solution to a problem, put together a team able to make it real and sell it to companies in need is a satisfactions like few others.
Consultant: The company calls you with a problem, you understand the problem in its various ramification and elaborate a solution. The company provides you the resource you asked to solve the problem and you fix it. This was my previous job, requires mainly ability to persuade, to compromise and to be realistic and not idealistic in regards to technology.
System Integrator: mainly in a company, this is what I do now. You are the one that decides how the new production machine is going to communicate with the old-proprietary database your company is using and also builds the proposed solution. You`ll also be asked to envision a way to improve quality control but from times to times you'll change the office printer cartridge or fix the kettle.
Technologist: TBH, I know only one. A former college professor that seems to see the future of semiconductors, is paid around a million a year to travel the world at his will and tell them what the next hot thing is going to be. A job for very experienced and absolutely our of the ordinary people. Maybe one day....