Since I store all my pictures taken with my DSLR, it would be great if I could use those photos (DNG's).
Right now Cr2's (Canon) are supported, but the Previews are really of poor quality.

Would like to be able to filter during a picture search in the same way Bing can i.e. large, medium, small. Even though the size is shown on the picture it would be preferable to filter out the small ones when I am looking for a large background that is a decent quality when viewed on a large screen

While the machine/auto design by Sway looks amazing, it would be awesome if we could get a freestyle/expert mode so we could manually place and layout certain slides ala traditional Powerpoint. The contents of that card would be locked and immune to the Remix. However, colour palettes, fonts etc works across to ensure consistency and cohesiveness. Thank you

SWAY seems to be best for image-heavy web presentation with little text content. So it would be great to photographers to wrap up images and add some personal touches and context.
A Sway would e.g. be great to sum up a typical wedding shoot quickly.

Most photographers live in Adobe Lightroom. So it would be great to have a LR plug-in to select some images, add some texts and pre-create a Sway, ready for finishing touches online on the web.

Alternatively it would be great to have an API, so the community could build one.

I love how you can now add embedded content to a Sway. However, I would also like to add content from more services.

PowerPoint has this feature, though I've never used the green marble or fish fossil patterns...the subtle paper, linen, and wood patterns in Sway look really fantastic. Giving users the ability to choose from several preset textures would be a great way to give users just a little more "control" over the look and feel of the Sway. I know I often refer to www.subtlepatterns.com when I'm looking for something like this.

When trying to import a powerpoint slide, too often Sway informs us that it's too long.
Please increase the limit of the import size.

PrintScreen images I paste into PowerPoint for cropping and enhancing must then be saved, then browsed to before dragging into Sway. I'd like to drag them directly from PowerPoint without saving them as a photo. Also, when dragging from a folder of pics, it indicates "move" rather than "copy" which is misleading. This last item is similar to what occurs using squarespace.com which has the same issue. I think Sway has great potential.

I looked at my Sway on an iPad, changed the "mood", and several things "broke" like comparisons and slideshows. I would've at least liked a warning that it was going to do this. Also, I can't seem to go back to the default style, as I don't know what it was.

I would like to be able to insert a line break without getting a new paragraph. For instance when typing an address I don't want that much space between the lines.

Great job on the collaborative / multiple author Sway feature.
When I create an edit link, I understand that authors don't appear until they sign in using the edit link.
We can revoke all links to the Sway to make it private again.
Can we have a feature to revoke just the edit link? This will leave the public link intact and the public can still view the Sway, while all shared editing ceases.

i use the website timetoast to make timelines and i would like to be able to import one in to a sway

With great social applications such as Instagram able to edit images with premade filters and add new and typography on the image similar to font candy on windows phone [1]

[1]http://www.windowsphone.com/en-us/store/app/font-candy-typography-photo-editor/9e404244-0f24-4c1e-9b97-6bc4b0f39761

There should be a link that can be used by the user to use a word document on their OneDrive on Sway. The document can only be visible to the Sway user and as changes are made in word they reflect on Sway.

For example, if there is a paragraph about Frankenstein on a word document, there should be an option to add it and convert any main headings, links and whatnot to Sway. AS their are changes added to the document, they also reflect upon real time or upon save (depending on user) posted on the Sway.

I'd like to use Sway as a tool for our Sales people to create personalized customer presentations.
What I'd need would be for Sway to stay within our O365 tenant (not public), to be configured to look at specific publishing libraries for master presentation slides (stored as images maybe?), disclaimers etc.
After that it would be nice to be able to have an offline format (through OneNote maybe?) and share it selectively with customers.
SharePoint used to have a Slide Library that we used in a similar way. I think Sway could be the killer app for Sales!