And now it’s time for some pure, unadulterated wish listing. If you’ve been keeping up with the releases coming soon, you’ll have seen that Tzeentch’s boys in blue, the Thousand Sons, are getting a very fancy, very grand set of releases. Several new units and HQ choices and, of course, the monstrous form of Magnus the Red (I’m going to paint mine blue with red hair just like the old epic version). This all looks very cool, but I can’t help but wish and wonder about what a similar sized Emperor’s Children release would look like. That’s what I’m going to go through here – my Emperor’s Children wishlist. If the pink and purple sons of Fulgrim got five new kits, here’s what I’d want them to be…
Lucius
The new Ahriman model looks amazing – loving the addition of the disc. The thing is, like Kharn, the old sculpt, while perhaps showing its age a little, still looked pretty damn good. But Lucius has been left far behind in these stakes. You can see here what we think he looks like, and what the miniature looks like. It’s not exactly flattering (and Lucius does like to be flattered). Less dorky, more detailed and more dynamic – that’s what we need. The lash whip could be streamlined a bit – perhaps coiled around him as if it’s about to snap out, the face could look less like a child’s picture of pinhead from Hellraiser, and the Armour of Shrieking Souls could shriek a bit more instead of looking slightly ill. Bring me a new Lucius!
Swordsmen
And who better to run into battle at Lucius’ side than a bunch of high-WS swordsmen striking at initiative 5? Forge World have given us the Palatine Blades, but what if GW put together a 40k version of this kit – a little more twisted and spiky from all that time in the warp? And give them a spear option as well. It would actually mean that the EC’s +1 initiative gift would be useful! How about that?!
Sonic Helbrute
Sonic Weapons are one of the defining traits of the Emperor’s Children and I for one would love to see some really heavy versions of this type of weapon. You used to be able to get the sonic dreadnoughts from FW, and they had their twin-linked blastmasters and sonic blasters, but I’m talking bigger, louder and more purple than ever before. Like a Marshall wall of amplifiers on an arm, and maybe a massive whip on the other arm. And a doom siren as well. Just for good measure.
Sonic Tank
And while we’re on the subject, how about a rolling wall of sound? Like the Sisters’ Exorcist, but instead of an old pipe organ, I’m thinking more Spinal Taps’ stage set turned up to 11 and stuck on some caterpillar tracks. Or, y’know, like the guy in the above picture.
And finally…
40kaddict
4gotowar
Castigator's Chaos
convertorum
darkfuturegaming
ftgtgaming
Mind of the Daemon
taleofpainters
talkwargaming
Twisted Brushes
weemen
Heresy & Heroes 
Nailed it mate, a good coverage of what the Emperor’s Children need. A few thoughts of my own as additions to the above list:
Sonic Terminators – for those weapons that are just too loud to be man-portable. Why let an unfeeling husk of a dreadnaught have all the fun with the big guns after all?
Fabius – another old model that’s seen better days.
Fabius’s flesh-crafted abominations – they could just try to get away with another mismatch of random bitz stuck onto a marine chassis ala possessed or forsaken and it would still have merit as a source of conversion material. Or they could push the boat out and do something really interesting and creative.
Torture Engine – could be a duel kit with the sonic dreadnaught even. Some kind of walking engine of torment for a bit of mid-battle torturing (either of the enemy or, if the battle was proving a little dull, the legionaries themselves).
Noise Marine Havocs. Let them be taken in EL/TR as they are now, or in HS with the option to take up to 4 BlastMasters.
Def Noise Marine Terminators, like Wudugast mentioned.
Sonic upgrade for the Defiler. Maybe something in a Hellstorm Template?