You are correct; Dawson Canyon is a Business-oriented design while the forthcoming Bean Canyon is a Consumer-oriented design. You aren't going to see the same feature set between them. Bean Canyon's feature set will more-closely match that of Baby Canyon, its predecessor.
Intel, by policy, will not discuss features or schedules for unannounced products. My NDA agreement with Intel will similarly not let me say anything about these products. What I will say (putting on my Mr. Obvious hat), is that, looking at the past,
- New Business-oriented designs have typically launched only every-other generation.
- New Business-oriented designs have typically launched some time behind/after same-generation Consumer-oriented designs.
- Consumer-oriented designs typically do support the wide (12v-19v) input voltage range.
- The internal power connector is typically only supported in Business-oriented designs that are also sold as bare boards.
As if right on cue, Intel releases Dawson Canyon's i7 tier (NUC7i7DN), which actually features Kaby-R with full-fledged 4c/8t processors.
Couldn't be more perfect!