Parmandur
Book-Friend, he/him
I hope you're right, but I'm not as optimistic as you. I'm expecting the mechanical expansion to be bundled with an adventure or more Realms lore, along the lines of Volo's Guide. I think the comments about supporting the old settings are genuine, but I think it's just a low priority for them. Something more likely another year or two further along their publishing schedule.
Psionics and subclasses are all I think we should expect. I think that idea of more races seems unlikely given we just got a race book and they could have been included there. I think expecting races and other setting specific options is a bit of a leap, although by no means an impossibility.
Honestly, I hope I'm wrong and what we get is almost exactly what you've described. We'll see.
We'll see; [MENTION=697]mearls[/MENTION] said at the Gameholecon panel that more Race options over the long term than Class is likely, given what people want; this is what they said about what the feedback on the survey when they first mentioned the expansion:
"In our last survey, we asked you which areas of D&D you thought needed expansion, and solicited feedback for the latest revision of the mystic character class and new rules for psionics.
"In terms of overall content, feats were far and away the most requested new element. Over 70 percent of you want more feats for your game. Feats also had the least opposition to their expansion. Because we haven’t released any products focused on new feats since the launch of the game, we know there’s definitely some pent-up demand for them. But feats are perhaps the thorniest element to design for D&D, as they tend to span multiple abilities and can trigger weird interactions that the game’s core design can’t always account for. As a result, we’ll be taking things slowly as we explore options and starting points for new feat development.
"A desire for more character classes came next behind feats, with spells and races clustered not far behind that. We asked in detail about classes, with the ranger easily leading the pack. The sorcerer and druid were the next most popular choices, followed by the fighter and warlock. The rest of the classes were mostly clustered together, with the exception of the wizard and cleric. Both those classes received much less support for new options, making me suspect that most players would rather see additional spells for those classes."