I'd been hoping for something like this, even though I expected it to come for the 10th anniversary (knowing how much RGG loves anniversary editions)
I hope that Saboteur gets replaced by something similar but more playable.
A number of Feast variants could work, I think. Just lowering the price to 2 would be a step, for example. +Buy on buy would be interesting, but that might be too advanced for the base set.
Thief, Chancellor and Adventurer already have their spiritual successors, so I think we'll see something new and exciting there.
I hope Great Hall doesn't get kicked out. Harem on the other hand... 3:)
Scout also has a little-known spiritual successor called Vagrant, but something interacting with all the small alt-vp in Intrigue would be great, so I'm kind of hoping in a working Scout.
I'm calling 4 non-terminal cards out of 7 in the Base set.