The Lexham Discourse Hebrew Bible Bundle includes EVERYTHING...including the HDOT. The pre-pub page has oddly listed these items.
Your best bet is to buy the bundle with all 12 volumes (the one for 199).
See this thread about them before you buy anything: http://community.logos.com/forums/t/20678.aspx
There are clearly some errors in the product descriptions and we ought to wait to hear back from Logos about it. But read my post (6th one down on the thread). I think that Lexham Discourse Hebrew Bible Bundle (12 volumes, the most expensive of all the newly announced Lexham resources) includes everything in the other three Lexham bundles. So that would be the one I'd recommend
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