Here's a link to a pdf showing designs for reference tooltips. The 1st 3 pages show desktop designs with different options. 

If we can determine the title parameter, we can highlight or bold that in the reference so its more readable.

We could also pull the lead image if there's a wikipedia article linked in the ref.

Page 2  If we don't want to bother with all that, the formatting isn't changed.

Page 3  If we parse the template type and each of the parameters. We can totally reformat the reference to show title, source, and date, then show other parameters with labels if a user taps to expand. This is the cleanest and most readable, but may take more work.

What do you think, should we show image thumbnails? Can we parse the templates and all parameters?

If you're interested there's more background on the design on mediawiki.

Thanks!