I got a chance to look at the dark eldar codex and there are some interesting changes from the previous dex. (thank goodness) I think raider spam is a thing of the past and we're going to see some use of those great looking new Reaver Jet Bikes.
Duke Silslus - lets you roll twice on the poison chart and lets you have the option of deep striking your raiders and venoms.
Baron Sathonyx - +1 on the roll to see who goes first, gives his hellion unit Stealth, gives himself +2 str on the charge. Has a shadow field, also makes the Hellions a troop choice.
Hellions x 20
Stun Claw
Reavers x 7
Heat Lance x 2
Caltrops (d6 str 6 hits on the fly over)
Reavers x 7
Heat Lance x 1
Caltrops (d6 str 6 hits on the fly over)
Wytches
3 x 10 man
Hydra Gauntlets x 2
Hekatrix w/ Blast Pistol
Raider w/ flicker field
Wytches
9 man
Hydra Gauntlets x 1
Hekatrix w/ blast pistol and power weapon
Raider w/ flicker field
True Born
5 man
Blaster x 3
Raider w/ flicker field
1999 pnts
Lot of mobility and just about everyone can take advantage of the combat drugs.
Shouldn't be too terrible to get the wytches into close combat even if you feel the need to deep strike them.
Not sure that 5 raiders are enough but I do think that the Reavers will do some heavy damage to long fang units in the first turns of the game with their fly by attacks.
The 20 man hellions 'should' have enough lasting power to snatch and grab any troublesome independent characters and get them out of the fight.