Tl; dr for 7th Edition changes: I’m glad that I didn’t invest too heavily in Wave Serpents. For posterity, I’m posting my 1500 point lists.

Craftworld Eldar, 7th Edition (Warhost Formation)

Guardian Battlehost

• Farseer w/ Singing Spear
• Guardian Defenders (30 models)
• Vaul’s Wrath Support Battery
• Vyper Squadron
• War Walker

Aspect Host

• Dire Avengers
• Fire Dragons w/ Wave Serpent
• Warp Spiders

Seer Council

• Farseer (2x)
• Conclave (5x Warlock)

Wraith Constructs

• Wraithlord w/ 4 guns

Notes

• May omit Wraithlord for additional Support Battery or Vyper
• May change from Seer Council to other command unit.

Craftworld Eldar, 7th Edition

Command

• Autarch w/ Swooping Hawk wings
• Farseer w/ Singing spear

Troops

• Windrunner Jetbike (x4) w/ 1 autarch. 2 squads.
• Alternatively, one squad of Windrunner and one Guardian Defender squad

Elite

• Fire Dragons w/ Exarch and Wave Serpent
• Wraithblades w/ Wave Serpent

Fast

• Crimson Hunter
• Swooping Hawks w/ Exarch
• Warp Spiders w/ Exarch

Heavy

• Vaul’s Wrath Support Battery (2x) w/ D-cannon
• Wraithlord w/ weapon and glaive