I don't think it will be necessary to use Dragons Keep, mainly cause this is like a brand new Story, Also I am betting Inquisition will use Selection Choices if you choose not do the Keep.
Or somehow Bioware will somehow Implement an OFFLINE Keep then Import those Choices into Inquisition would be another possible choice or using a USB Flash Drive regardless of 56K Dial Up or Fast Speeds then USB into a Console of your choice.
Otherwise I don't see the Keep doing much in terms of Making choices into Inquisition, Other than seeing Random NPCs such as Hawke, The Warden, Allistair to possibly Leliana, Aveline, or Isabella to who ever survived in your Dragon Age games.
Other than that I see no reason to Import into Inquisition, previous games didn't do much in terms of Importing I see no difference in Inquisition.
See I am getting Inquisition on my PS3 but my Laptop is on 56K Dial Up while PS3 Is DSL, Broadband, WiFi or Wireless so I don't know how this will work regarding Keep from my Laptop to my Console.
So I may just play Inquisition this Fall using Selection Choices on its DEFAULT MODE so hopefully Inquisition will have more Choices than Dragon Age 2 did only having 3 Choices in DA 2 if you didn't import.
Just sucks that DK is the only way to IMPORT so many of us will be playing the game BAREBONE-DEFAULT, cause we don't know how the keep will work from PCs, Laptops to Consoles. Also Internet Connections could be another problem. If The Keep wouldn't work on 56K Dial Up. This would be a big kick in the nuts for a lots of us.
Basically Previous saves are USLESS, being NULL & VOID so I see no point in replaying previous Games, so I am going to trade my previous Games & delete its DLC since I can not do DIRECT IMPORT like Origins into DA 2 did.
The more I hear on the Keep the more it pisses me off. It sounds Complicated & Aggervating, being a confusing mess.
How will the keep Transfer from PCs, Laptops to a Console
What Connections does the Keep REQUIRE can I use it on DIAL UP.
How much will the Keep COST
While the Most Vaguest of Details have been on the Keep most of the Biggest Questions have been IGNORED