I run games at conventions, at my local game store, with my regular group and on Fantasy Grounds. I really want an option to be able to buy books as a hardcover, a PDF and a FG module all at once, preferably for a steep discount.
I doubt it. Wizards doesn't have the electronic infrastructure to set it up and manage it themselves, so they'd have to partner with someone. There goes your "steep discount" right there as the partners would need to get paid. Plus Wizards seems to remain uninterested in (or more to the point "actively against') having things that are in print also available for sale digitally - probably because of their focus on building new player bases and the role of game stores in that plan. So I don't see them having a partner who gets to sell the PDFs themselves rather than just provide the access and other gatekeeping resources to get them into the proper players hands. Which probably eliminates much of a discount at all.
Sadly, I think you're more likely to see a shift in Wizards digital publishing plans to allow PDF sales on in-print titles than a bundling. And I don't think that shift will be coming anytime in the near future.