What was really new about these? The Clones? In the grand scheme of things those aren't a tremendous loss, but I think we may see those some time this year. It's been said before and it bears repeating: If Hasbro has shown a product publically, then more than likely it's going to make it's way to market. They've shown a committment to doing that time and again, even if it take a while.
The Clones in each set were new, yes: Gearshift and Scythe. You also get some cool molded brain worms too.
I'm not so sure this will ever see a mass release here in the States. Hasbro has already stated that stores are not carrying forward any SOTDS merchandise, which is how both of these sets were to be packaged domestically.
As far as them showing these publically, well, they have made their way to market - overseas and in Canada. we're just not likely to get them here I think. Hasbro may repackage the clones somewhere down the line in a BP or something like that, but I don't think we're likely to see that this year, if ever.
I do hope I'm wrong though, I would much prefer to have the SOTDS packaged version with the DVD included. I just don't feel great about the prospects right now.