As you may already know, we love rampant speculation here at FortNerd. As long as nobody is getting hurt by it, we think it's fun.
I speculated in January that Dragonlance was going to be included in the 5e development pipeline, primarily because of the renaming of the Hickman/Weis novels ("Classic" Dragonlance) but as of today it's all but confirmed. You see, D&D uploaded a new Unearthed Arcana that featured Draconic races; you may be asking why it's relevant to the Dragonlance discussion?
Here's what we know for sure:
Ray Winninger, Executive Producer of D&D told fans 3 classic D&D settings were in the development pipeline
We know one of those three was Ravenloft with the release of Van Richten's Guide to Ravenloft in May
We know that in early February D&D released three new gothic lineages to unearthed arcana that would later be confirmed to appear in VR (Dhampir, Hexblood etc.)
We also know that the Tracy Hickman/Margaret Weis novel series coming soon will be called classic Dragonlance
Given today's release of the Draconic options, it seems clear that Dragonlance is next. Don't take my word for it, though. 'cause D&D all but confirmed it with this:
Fizban the Fabulous is a character from Dragonlance. According to the Dragonlance Wiki he was an "old mage who showed up on Krynn during the War of the Lance" and was "an avatar of the god Paladine." You aren't including named characters into game options unless they're going to be supported. (Unless it's Greyhawk. Then they'll drop all sorts of named characters without a 5e refresh...don't get me started...*crying sloppy tears*)
I could of course be completely wrong about Dragonlancec, but that's half the fun.
Being right is 100% of the fun, though. So there's that.
I don't math.