Structured Data for Mobile User:
One should not neglect this parameter while optimizing website on digital front. If you possess a site configuration where the primary content and markup are different for mobile users, it is required to add structured data to your site.
Increase ROI with AMP Version:
Since AMP has been launched, it has been desired to have versions those do great in mobile devices.
Testing Tool https://search.google.com/search-console/amp
Optimize with Open Graph & Twitter Cards:
It is advised to have og tags and twitter card implenetation done on yoru website for enhanced user experience over social networks.
Open Graph markup tester: https://developers.facebook.com/tools/debug/
Twitter Metadata: https://dev.twitter.com/cards/overview
Mobile First Indexing:
Structured data should be added for desktop as well as mobiles. You may use robots testing tool to verify that your mobile version is accessible to Googlebot.
Official Announcement: https://webmasters.googleblog.com/2016/11/mobile-first-indexing.html
Progressive Enhancement:
It is advised not to use the browser’s user agent to enable/ disable features in your web app. Before registering for user, check for availability of API.
Virtual Reality:
The opportunities offered by VR for smart digital marketers are never ending.
Customize for Voice Search:
With 89% mobile users searching for local businesses or places on weekly basis and 58% every day, businesses cannot afford to ignore the impact of voice search on their Return on Investment in coming year.
Create buzz via Video:
Video will keep on dominating in next year too. Make sure the video is crisp and informative, worth giving a shot to.
Doubleclick Platform:
Be a certified doubleclick & you can earn many projects on your side. Since it belongs to Google, so running this ad, will benefit your business.
Cross Browser Compatibility:
Use cross browser testing tools such as BrowserStack.com, Browserling.com or BrowserShots.org to ensure your PWA is cross browser compatible. Progressive web apps will definitely be a trending topic to focus on.