By "tedious work" I meant something more along the lines of soaking up bolter fire, or clearing a path through a mine field. The green animals could make for excellent fodder if they were properly directed and motivated. Say what you want about their feeble and clumsy attempts at making war, but never forget how inexhaustible their numbers are. Let the great enemy and the children of the corpse emperor do battle with the greenskins while we deliver the death stroke.
Biel-Tan. They are the ones that strive the most to rebuild the former Eldar empire. They will achieve it.
I play Biel-Tan in TT, so probably them, although I like Saim-Hann. I also like corsairs though - ship me one of those.
The only problem with that plan is that I cannot tolerate their stench. Of course, we could use them to build fortifications if we were in a sudden need of them - but that still leaves us with the problem of their stupidity and the fact our foes could hear - and smell - our bands of warriors long before we were in striking distance if we kept the filth with us as we travelled. No, I do not think there is any use for Greenskins in creation. The faster we put them back to the place they were meant for in the Universe - as in, scurrying around the borders of our Empire - the better. I do not see that as a wise course of action. The Tau are naivé, but certainly not primitive enough to be treated in such a way. I must say I agree with the exalted Eldrad - the Tau show promise to be something great. I can not, however, take seriously his suspicion that they will one day exceed OUR civilisation. We best watch them carefully, and guide them, lest they misunderstand the way this Galaxy was meant to be and try to rule over it as if they were Eldar.
I guess Ulthwe is a must given their fame and popularity, i'd like to see some of the more forgotten ones like Altanasar, don't like there color scheme but they have Maugan Ra. anyhow i hope we'll see some diversified factions.
I'll say Iyanden, just my personal fav. & it would be interesting having some more wraiths about, or Spiritseers.