Mmolecule gets the lowdown on defeat in Stargate Worlds, as well as several other topics of note, from Senior Systems Designer Chris Bernert!
Here's what he had to say about how death will be handled:
"All kidding aside, no one truly ‘dies’ in Stargate Worlds. They are just defeated. When a player is defeated they have three options; one is to revive in the nearest hospital. Two is to get revived by another player or three which is to revive where they were defeated. The penalties associated with these three choices are not finalized at this time but needless to say we want to make sure we find the balance between making defeat meaningful verses making it annoying."