1. On-route weather and whether there is expected to be any turbulence

2. Flying time including arrival time

3. Local time at destination

4. If it is a day flight, a bit of information about the route including any nice scenery along the way and what major cities we'll be flying over. But to keep the masses happy, not too long, eg, 30 seconds on this. If it's a night flight, no one cares about the route or scenery so no point mentioning

5. Pilots name, and when flying EK, always good to do the nationality of the pilots.

That's about all I'd want to hear