People have voted and they voted for mobile
Are you still working on the relaunch of your intranet? Stop it, stop right now! By the time you’ve launched it, it will already be old and most likely not used, just as any version before didn’t get the adoption you hoped for.
There is nothing wrong with your intranet, it is just a relic from the past and people have moved on. Just look at the numbers. The entire growth of digital time spent from 2013 to 2016 has been on mobile with smartphones dominating. When given a choice, people vote for mobile.
"Mobile apps can be the trigger for change in businesses, helping employees focus on the real business..." - Forrester Aug 2016
Sure, you could argue that these are consumer statistics and don’t apply to the workplace. The same has been said about the social workplace or the cloud; but look around you today. Companies left and right are rushing to define their cloud strategy. Mobile is not going away, and it's going to be the dominating way employees interact with their organization and with each other.