Telepathy is on its way. Next step they just skip the conversion of brain signals to words and just directly send the signals to another brain. But I think some conversion/translation would still be necessary.
I think (futurology / science fiction) that they will make some kind of brain link, but there won't be any translations happening in between, just raw brain signals from one to the other, like an extra sensory input; there won't be any encoding or data that can be translated to speech or images, but the connected brains will be able to learn to comprehend and send the signals to / from each other and learn to communicate that way.
That sort of connection would be very susceptible to psychic attacks - I'm thinking of the telepaths in Babylon 5, being trained for offensive capabilities, as well as just plain old spam advertising. So while "defaulting to trust" is often considered societally useful, I believe that it would be better for everyone if cross-brain messages are sent in a format that can be analyzed (and entirely blocked) by a filter on the receiving side.