[Crazy Jetty]

Let's see. In order to organize my wishes to put them more in line with Mattel's future plans instead of their current plan:

DCIE Club- I would like to see this organized by themes. Each year is a new theme. Like, year two will be Rogues, or Secret Six. Where they make a point to finish off the S6, and mix in a couple non-themed figures so as to not completely turn off people who collect only heroes.
Such as: Vandal Savage, Osiris, Ragdoll, Speedy II, Jeanette, Cheshire, Impulse, Steel with the oversized figures being Killer Croc, Beast Boy Gorilla form (A minor rework of Grodd would do), and Blue Lantern Brother Warth, with Doomsday being the subscription exclusive (or flip Doomsday and Warth).
I think a set up like this would be a very nice selection,a nd a nice layout. Most, if not all are fairly to really obscure characters that have little chance to get into a normal DCUC wave, let alone the new focus on A-C string characters.
And basically, we can continue along these lines. With the next year following a different theme, like the Marvel Family. Again mixing in some off theme characters.

For retail:
Batman Legacy- I would like to see this continue, exactly along the path that it's on currently, focusing on filling out the Batfamily. Three per wave, with one or two twopacks every couple waves.
Individual release: Stephanie Brown/Batgirl, Suit and Bowler hat Riddler,Artic Chammo Batman (Bat variants don't bother me when they make sense like a snowsuited bats. I'm sure he's been like this in the comoics somewhere), Nightrunner, Mad Hatter, Huntress, plus a bunch. There are always variations of Batman to work in, too.
Twopacks: The Question (Montoya) and Batwoman, Oracle and Batgirl (Cassandra Cain), Batman and Robin (Grayson/Damion), and follow along themes that make sense.
And here we shunt the large characetrs like Croc into the DCIE Club as oversized figures.

Green Lantern Legacy- I think GL is popular enough and well known enough now to support it's own perminent DCUC line, and will only increase when the GL: TAS rolls out with it's show and toyline. Follow along the Batman Legacy example of releasing individual waves of three, and a wave of twopacks every so often. Though, not as often as Batman (This coming from a hardcore GL fan).
Singles: Hal Jordan has enough variations to keep him in the line, since I doubt now they'd do one without him showing up every other wave or so. Parallax, modern costume, Reboot costume, Red Lantern (Straight repaint of the Black Lantern Hal), Blue Lantern, flight suit... this is not to say I want lots of Hals... (I barily like him) I'm just accepting the fact he's joing to be the core character and get tons of variants. Plus, there's all the other characters. All the other aliens, and all the other Green lantersn, and other corpsmen.
Twopacks: Saint Walker and Green/Blue Combo Hal, Warriors Guy (Blue costume) and Marine Corps John Stewert, Red Lantern Mera vs Black Lantern Wonderwoman.
Like Batman Legacy, shunt the oversized figures into the DCIE oversized program. Brother Warth, Sinestro Corps Mongul, Bleeze (She should come with two sets of wings. Her skeletal wings, and then a set of lightplasma construct wings). There really are more oversized Lantern characters than there are others. Too many to mention.

As for the new DCUnC line... since Mattel hasn't really commented on it, I don't know what to expect. They said it's not going to be straight forward waves like DCUC was, so I really don't understand what that means.
But I personally feel the Legacy stratigy can carry over to a Justice League Legacy line.
If they went this rout, I think it should be a larger toyline than Batman or my proposed GL. Maybe five figures at a time (But that still follows a wave format, so I really don't know what it means. But I have a feeling whatever they do will still be more like traditional waves than they let on.)
But for this line, we see the more heavy hitters of the DCU. Superman, Wonder Woman, Flash, Luthor, Cyborg, Brainiac, as well as fitting in a few of the second stringers, and varients of the big names (GIVE US WALLY, GODDAMMIT!)