I don't think Imperial players are excited about Agent Kallus as they should be. Granted he can only be placed on I think four standard point game ships. (Phantom, Shuttle, Decimator, Firespray.)
First of all he is extremely affordable coming in at 2 points.
He also gives you a mixture of the Emperor's ability and the EPT Predator.
It does require a bit more skill to use as you have to select the ship engagement before hand but I don't see that being too difficult for one to figure out each turn.
Scourge has an if/then ability but I think if he is teamed up with other top tier TIE pilots he will be great.I think he would do well paired up with other pilots who gain the bonus attack die like Backstabber, together they are 33 points. Add in Mauler Mithel which brings this list up to 50 points with plenty of room to spare for a phantom that has a passenger seat for Kallus. Who knows what other pilot aces will come in the new set but I think they will be great. I think we will one day see worlds lists that look similar to wave 1 lists. TIE bus formations where every TIE is benefiting the ship next to him in formation creating a super synergy.
Fly casual.