Excellent question. One point of correction; there really is no "team" per-say; I'm just one guy making this. I do, however, have loads of help on the design side (some old friends from Wc3C), and several really helpful people on the artistic side (some of which have been Jigrael (Tarrasque), AnemicRoyalty (A.R.), Deolrin (Deolrin), t-Revellion (-D-), and Retera (as well as several others)).
In terms of "models completed"... Well it's sketchy, but getting there. Part of the issue is I'm going from "no custom art needed" to "yeah, I kinda want custom stuff now".
Ultimately, I've got almost all the Heroes, perhaps 1/2 of the units, loads of SFX, and a few buildings. I've slowly been making a list of what is left, and I've been incredibly blessed by a lot of different artists.
I've got a list, as well as a special "concept art/idea write-up" compilation thread that I'm preparing (not very good at concept art myself, but practicing). Most importantly, though I have plenty of ideas & art for several races on the thread, I am only focusing on what I know I can accomplish now (i.e. in the next 5 years xD); the Jungle Trolls. Everything else is on the 'back-burner' until then.
Some things are in flux, but I'll write up what I'm looking at now...
T2 Ground Support/Caster Barracks ("Swamp Lodge")
T2 Aerial Support/Caster Barracks ("Vale of Shadows")
T3 Ownage Device Barracks ("Forbidden Temple") //maybe
Tower & Tower Upgrade ("Sentry Post/Watcher" -> "Tiki Tower/Evil Eye")
Racial Shop ("Ritual Circle")
Town Hall ("Grisly Message -> Lurid Warning -> Gruesome Testament") //being worked on (jigrael)
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STR Hero ("Warbringer") //being worked on (AnemicRoyalty)
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T2 Mass Ranged Support Mech ("Dart Skiff") //have some art, no takers
T2 Light Melee Siege/Meat Shield ("Basilisk") //in the Request thread, minor edits hopefully
T2 Medium Speedy Cavalry ("Marauder") //being worked on (PROXY)
T2 mounted caster/anti-caster ("Hexxer") //have some parts & art
T2.5 warrior-mage special infantry ("Tiki/Ritual Warrior") //just needs minor tweaks to model
T3 ownage device ("Jungle Dartmon/Tiki Torchmon") //could be a big job, or small. depends on if I can get ahold of a certain modeler...)
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Lots of Wards (Augury (Hero, prophecy), Skullbloom (unit, mana-regen), Null (unit, no spells), Grim (Hero, ultimate mind-control & skeletons), etc)
Zombies (for a Zombie Wall)
Incarnate-form (snake-like Troll form for Ultimate skill of snake-troll-priestess Hero)
And that's kinda it, I believe. Much is up for grabs and to-be-determined, but I'm nailing things down.
Are you asking because you have an interest in becoming part of the "Team"? If so, I greatly appreciate the offer, and anything you would like to take a whack at, let me know. I've got art for much of it, and ideas for all of it.
Either way, thanks for asking. : )