I predict we are going to see caravan traders attracted by broadcast station. Occasionally bringing with them ultra-rare though expensive goods. Finally, we would have something to spend our hard earned bottle caps stoking up.

We will get a new robot factory room where we can build Sentry bots and of course Mister Handy. Now we don't need our dwellers do security in non production rooms.

Last but not least new foe the giant freakin super mutant behemoth. I'm not sure it will fit the vault door but it sure will show up sooner or later.

What are your speculations

i would like mercenaries or traders, a nice addition would be raiding parties on NPC vaults/bases/cities

i wouldnt mind the ability to watch what my explorers are doing

My speculation is, will there be an update? Bethesda seems to have moved past this game or at least stopped responding to support for this game.