Micro Four Thirds cameras are perfect for a whole range of photography needs including travel, photojournalism, photoblogging, street photography, portraiture, fashion, astrophotography, macrophotography, social events.
The latest ones will easily link by WiFi to your smartphone which can even control the camera, and the Olympus
E-M5 and
E-M1 are almost waterproof!
The future of most cameras is
mirrorless camera systems - either full frame or Micro Four Thirds, you may wish to take this into account before spending big money. DSLRs as a technology are near the end of their use by date.