Your headcannon may be right; I've never thought of it that way...
And I think a bobsled coaster revival would be cool. Of the two I've been on (Avalanche at KD and Disaster Transport at Cedar Point), I liked the latter more as it felt like going down the hill in a bascart (in the BEST way) - especially on the drops after a turn. However, my "better" memory of it may be because I was younger when I had my one ride on Avalanche (which I'm pretty sure I enjoyed; it was definitely different than anything I had been on before), whereas with Disaster Transport, I rode it multiple times and I was older.
I've really enjoyed the bobsled coasters I've been on. It'd be cool to see one come our way. I'm not sure where specifically in the park I'd put it... Depending on the theme, I suppose I could see it in Area 72. Or maybe even Rivertown as a spiritual successor of sorts to Kenton's Cove Keelboat Canal, if you turn your head and squint.
I have no idea if there's any validity to this, but in my head, Avalanche at Kings Dominion and Adventure Express were originally destined for each other's parks. Adventure Express makes more sense for Avalanche's spot thematically, and vice versa.