Hmm...
DST stating they'd like to work with DSC could be an indicator that they have the licesne but are under an NDA and can't say that they have it yet, or it could be an indicator that they're merely trying to secure it. I would be surprised if it's not offered to them simply given who DSC is being aimed at and that there's already a built–in fanbase for DST's toys.
Then again, it's possible that DSC won't see a toyline until its third season and that CBS isn't actively trying to push anything just yet since pushing a toyline is how ENT and NEM wound up warming pegs. Throw in the fact that Playmates produced a toyline that didn't go anywhere in '09 and the toy line for STID was a flop, and I could see CBS wanting to see DSC's performance before comitting to a licensee for the toys. Besides, there are benefits to waiting for a TV show toyline, such as electronic ships that feel fully representative of the show and not just the first half of the first season, popular characters potentially getting priority as figures, as opposed to characters that would presumably be popular but aren't, as well as the potential for variants based on scenes fans latch onto. I could see DST being able to release a U.S.S. Discovery with a couple of variants around season three much more easily than just releasing a U.S.S. Discovery at the start of season one. VGR didn't see its ship until it had been on the air for a few seasons, and VGR figures didn't show up until season two if memory serves me correctly. There was also a gap between an earlier TNG toyline that few remember and the ever–popular Playmates line of the '90s which benefitted largely from knowing what aspects of TNG to incorporate into said toyline instead of "firing blindly" as it were. I think that's worth considering.
As for the D7 not being in the drawing board, it honestly doesn't bother me, at least not right now. We still need the Enterprise–C to finish off the "ships named Enterprise," we still need the Defiant, and we still need Voyager, and if DST gets DSC, we'll need "The Discovery" as well, and that's just Federation ships. We know the Reliant is in the works, and that presumably there are other Federation ships being considered to follow it.
As for alien ships, we have one from TOS, one from the TOS movies, and none from TNG–VGR or ENT. Keeping in mind DST's opposition to the D'deridex–class warbird, I would think we could still see a Valdore–class Warbird, (appeared in NEM, goes well with the ever–in–demand Enterprise–E from DST,) a Borg ship of some sort, (I believe Chuck or Zach have said that they're continuing to look into how to do this without just having it be a boring block of plastic while staying on budget,) TNG–era BoP variants, which I realize aren't new, but are still TNG–era, a Jem'hadar attack a ship which seems to be a bit of a fan favorite as well, a Ferengi Marauder which seems relatively simple and possibly complimentary to a U.S.S. Stargazer which is something that could potentially be tooled largely using existing tooling from the upcoming U.S.S. Reliant, (the Enginers and saucer between the Miranda and Constellation–class are nearly identical, it's just pylons that would supposedly need new tooling,) and even an ENT–era BoP depending on how much could be harvested from the current BoP. *Takes deep breath* Yes, the D7/K'tinga seems like something DST needs to get too eventually, but I'd rather we get some non–TOS stuff before returning to the "all–TOS all the time" mentality. Yes, I want a K'tinga too, but there are other ships I'm much more interested in, both Federation and "alien" at that. Maybe the K'tinga is on the drawing board and that's why the D7 isn't, or maybe we whined loudly enough that DST is trying to find a way to make that pesky D'deridex–class affordable enough for them to produce it. Let's not treat this like the end of the universe just yet, I don't think DST's line is finished by any means, I think it's merely moving at the pace it has been moving at for ages now.