The basics are still the same, and the style of gameplay for each mod is the same. Players have probably changed a lil bit but nothing too dramatic.
Ill suggest to use older moves, mainly in wushu. In aikido, everybody knows the shovel and the kicklift, and most players have good counters. 2 out of 3 players I see kicklift, so if you come up with a more old stylish move players will have alot more difficulty (Same goes if you create your own opener and it has good defense and offence, players will have more difficulty)
In Taekkyon, I wouldnt worry if you are a good player.
In wushu, you will want to use an old style opener for the same reason as in aikido.
Basically, its the same as before with a few MINOR changes