i know about demons in Warhammer 40k, but in EC you want to customize your character equipment your armor to unlock other classes with demons you just gonna lock your self i doubt that some one want to play like Screamer, Flesh Hound or other demon beast with Tau, Necron and Dark Eldars you have so many options
The main problem I can see with the Dark Eldar is the way their society is divided. They don't really have things like chapters, craftworlds, etc; each "caste" of fighter has a different organisation. Warriors belong to their Kabal, Wyches are grouped into Cults, Hellions are in gangs, Homunculi have their covens... how would that work with the way the game currently seems to treat your character "class"?
I think Necrons, IG, SoB, and other imperium forces just wouldn't work. They are either not sentient enough, lack any customization, or are simply to hard to implement whether it is from a technical standpoint or gameplay one. Dark elder would be interesting, as would the Tau empire(vespids, kroot, human rogues, etc.)
the classes might have to be a little more balanced than the lore, I just don't want to see totally broken lore like the scaven in warhammer age of reckoning... and I would love to play a tau, I see tau as the first expansion
Could It be possible to have mercenary ,,races " like Imperial Pirate, and Dark Eldar, Kroots? It sounds preety much fun to play as a mercenary who fight on the side who pay more Resources/weapons.
They would have to really bend the lore to make Daemons playable, since they are much, MUCH stronger in the lore than they are portrayed in most of the 40k games, TT is no exception.
I suggest the Chaos Cutists, the Imperial Guard and the Skitarii be introduced as free2play factions. As I see them, their strength is in their numbers, like the ork boys. The Daemons are best suited for PvE elements, like guarding a dungeon, or being summoned on the battlefield by a Chaos Sorcerer (or as a skill for every Chaos Space Marine). I also suggest the ork Gretchin as a PvE faction in guarding duties or being commanded by an ork Boy (since the Nobz command the Boyz, why not let the Boyz command the Gretchin). Lastly I suggest the Mechanicus Legio Cybernetica as another PvE faction in guarding dungeons or fortresses.
The problem with that idea is that Guardsmen are organised which F2Pers aren't which is why they're Boyz. I see Guard players commanding squads instead of people. Why do Orks need more f2p options..... Again Cultists don't see much point in them seem a bit redundant.