1500 List, 7E

Here's my prospective list built out of the new dex

Archon- 130

Shadow Field, Agonizer, Haywire Grenade

Succubus- 115

Archite Glaive, Armour of Misery, Haywire Grenade

***

Incubi- 155 (Succubus joins)

4x, Klaivex, Venom 2x SC

Court- 165 (Archon joins)

4x Sslyth, Venom 2x SC

***

Warriors- 185

10x, Splinter Cannon, Raider w/ DL, Splinter Racks, Night Shields

Warriors- 180

10x, Splinter Cannon, Raider w/ DC, Splinter Racks, Night Shields

***

Reavers- 181

6x, 2x Caltrops, 2x Heat Lance/Blaster, AC w/ Agonizer

Scourges- 120

5x, 4x Heat Lance/Haywire Blaster

***

Ravager- 140

3x Dark Lance, Night Shield

Ravager- 125

3x Disintegrator Cannon, Night Shield

***

Any suggestions on streamlining this army/round out its effectiveness?

I'm thinking of switching the Ravagers' guns into Dissies. Which will give me room to plonk Night Shields on.

I would consider to change your assault boats to Raiders. Because 3+ jink and that Venoms are best when they shoot at full BS at infantry.
You could swap the Raiders from the warriors out. Then you could opt for smaller warriors squad. Add some more Sslyth or some cheap Ur-Gul to take the wounds for the Sslyth and Archon.
On which I would add a Soul-trap.

with all the long range stuff you have, do you think putting heat lances on the reavers is really worth it?
seeing as their only defense comes from jinking, i don't think they will be doing much with those heat lances or blasters, assuming the enemy doesn't completely ignore them, which really he shouldn't, right?