Thanks for the reference Hamsterbait.
To be more specific, the actual talks in the congregation are in outline form. However, from my vantage point the direction is to stick directly with the outline - not omitting points or 'ad libbing'. This point is repeated throughout the Ministerial Training School and the Congregation Coordinators take this very seriously. In the elder's meeting this directive - to stick with GB's outline for talks - is a mandate. Illustrations or experiences should come from WT publications (unless a current news event applies to the outline).
BOC and Falcon have it correct about assemblies and conventions.
In addition to 'outline' or full manuscript talks, many congregations have digital projectors (a directive from 'the Branch') that will be showing talks that come directly from New York. It's my speculation that the next step is live feed for Sunday talks.
That's exactly what will be happening this October for the Annual Meeting - where all will study the 'new understanding' about the F&DS.