Dont know if a leader is shipping alongside Skywarp but I sure hope its G1 (Grey/Silver) Megatron. He is the only one that is hard to find or completely sold out. In canada, he is now sold out from Walmart, Toysrus and Amazon, while armada megs (the green one) is everywhere. If Hasbro wants to play it smart, just release more of the G1 deco megs in 2016, it seems we cant get enough of him.
MOVING ON... I have some stuff to say about the Leader seekers. I was about to buy them the other day because they are quite cheap (35$cdn/27$US in stores) and as I was holding the Starscream box, I took a good look at him and realized how dissapointing he was as a toy.
The first thing that made me flinch was the headsculpt. For some mind boggling reason, Hasbro has the hardest time coming up with a good seeker head. They put lines that dont need to be there. Takara does that with the masterpiece, giving him a pronounced chin but what Hasbro does here is that and more. I hadnt noticed it before but the nose is all sorts of wack:
Transformers Generations Combiner Wars Starscream GalleryHe has these two lines that branch out at the top of his nose, making it look like it was pinned to his face and not part of it, kinda like he's the scarecrow from wizard of oz. Your eyes go directly to his nose:

It was more distracting than I thought it would be. And his eyes are totally lifeless. I dont know, the faceculpt just didnt scream Starscream to me in the least and was more generic seeker (which was probably their goal).
But beyond that, I realized how this mold doesnt work for a seeker at all. Sure, when you look at it, the first thing you see is the chest and you'd think it was a great rendition of the IDW seeker design below:

But if you take more than a second to look elsewhere, you realize that its only the torso area that is similar and everything else is very different:
Transformers Generations Combiner Wars Starscream GalleryThe exhausts end up in back of the head instead of the back of the feet, there is no tail find on the feet, there are no triangular parts at the sides of the head, the arms are all wrong and my biggest pet peeve: the wing design in the back is not at all that of a seeker's. Instead of having the two wings, you have thing canopy with absolutely no color. Here is a better and far more definite version of that IDW design and you can tell how it looks very different to the Leader class:
Transformers Generations Starscream GalleryAnother seeker trait is of course the seeker chest and the designs show the nosecone extending beyond the mid section. It doesnt on the Leader mold, making it look more like a chest design imitating a nosecone rather than an actual nosecone, unlike the Legion class toy (from RTS), which had a fake nosecone chest but clearly intended it to portray the actual nosecone rather than a chest design resembling the nosecone.
Transformers Reveal The Shield Starscream GalleryAnd please note that I am not being nitpicky on the hallowness or any of that, this is specifically design and how it fails to capture what its trying to do.
This made me think about Jetfire. Why wasnt I this nitpicky? Well, turns out its because he is indeed far better suited for this mold and a lot more care went into him.
Here is the animation model they were basing it off and trying to modernize:

The wings in the back have colour (as they of course would), but this mold doesnt, right?
Nope, Jetfire had those exact colours on his wings in the back:
Transformers Generations Jetfire GalleryAlso, look at how well it recreates the torso area, and making it extra sleek. It definitely benefits on the fake chest, giving you a show accurate chest for the robot mode while giving you a nice cockpit area to replicate the G1 toy. The headsculpt is also spot on (with that awesome extra mask), and they give us those red turrets which you can pose to recreate the G1 look (using the toy's look of having a space between them).
So all in all, there was a lot more love that went into this mold being Jetfire while the Seekers look like an afterthought, especially when you look at the wing area. The same mold that beautifully homaged two distinct Jetfire looks at once totally fails at giving us a good looking seeker.
Anyways, this was all to say that I am never getting these seeker toys, no matter the price and you can see my logic behind that.