I'm going to take some of my favourite concepts from a Custom Set I did last year, which I think could realistically be done with a Virtual set (using existing sculpts):
Princess Leia, Not A CommitteeSynergy (this character gains +4 Attack while ally whose name contains Han is within 6 squares)
Synergy (this character gains +4 Defence while ally whose name contains Luke is within 6 squares)
Synergy (this character gains +10 Damage while ally whose name contains Chewbacca is within 6 squares)
Commander Effect: Rebel Allies whose name contains Han, Luke or Chewbacca gain Greater Mobile Attack.
Basically a "centerpiece" to the Rebel heroes squads. Any new Rebel Leia needs to be great, since you're sacrificing Princess Leia for this. Plus, with all those synergies, this Leia should become a decent fighter as well. AT-ST DriverDriver (when an adjacent ally with Mounted Weapon begins its move, you may relocate this character adjacent to that ally at the end of its move)
This piece should also have Gunner or Crack Gunner. The idea here is to provide a gunner which can move alongside the Mounted Weapon piece. He should be INSIDE the AT-ST, not constantly having to try to run to keep up! Can also work for an AT-AT Driver, Cloud Car Pilot, Weequay Skiff Guard, etc.VaderMeditation (replaces turn; remove this figure from the game, and replace it with another character whose name contains Vader with a lower cost. Damage and Force Points are transferred to the new figure)
Original concept appeared as Vader's Meditation Chamber, but for a virtual set it would need to be on Vader itself. Imagine a high-costed Vader with this ability; you could see your opponents squad, then decide to replace him with another Vader better suited to the matchup. If this Vader cost 75pts, you'd be paying a 20pt premium on Vader SotJ, 4pt premium on Lord Vader, etc. Tempo Control CounterCommander Effect: Each player may not activate less than 10 points worth of characters each phase. Players must continue to activate characters until at least 10 points worth of characters have been activated this phase, or no unactivated characters remain in that player’s squad (ignoring Commander Effects and Special Abilities limiting the number of characters a player may activate per phase, until at least 10 points worth of characters have been activated).
This could really be on anything. It doesn't stop you from activating 1 piece a phase with Dodonna/San Hill/Ozzel... just so long as that 1 piece was at least 10pts or more I had it on Chief Chirpa, as an indirect Ewok booster: you could suddenly swarm and attack with 4 Ewoks in 1 phase with this CE.Jodo KastImposter (while this character has line of sight to another character whose name contains Boba Fett, both characters gain Attack -3 and Defence -3)
Because messing with Fett is fun